diff --git a/src/components/estimation-range.tsx b/src/components/estimation-range.tsx
index 7341836..f8f90b0 100644
--- a/src/components/estimation-range.tsx
+++ b/src/components/estimation-range.tsx
@@ -11,13 +11,18 @@ export interface EstimationRangeProps {
 
 export const EstimationRange: FunctionalComponent<EstimationRangeProps> = ({ project, estimation }) => {
     const roundUp = getRoundUpEstimations(project);
-    let e: number|string = roundUp ? Math.ceil(estimation.e) : estimation.e;
-    let sd: number|string = roundUp ? Math.ceil(estimation.sd) : estimation.sd;
-    const max = e+sd;
-    const min = Math.max(e-sd, 0);
-    if (!roundUp) {
-        sd = sd.toFixed(2);
-        e = e.toFixed(2);
+    let e: number|string = estimation.e;
+    let sd: number|string = estimation.sd;
+    let max = e+sd;
+    let min = Math.max(e-sd, 0);
+    if (roundUp) {
+      sd = Math.ceil(sd);
+      e = Math.ceil(e);
+      max = Math.ceil(max);
+      min = Math.ceil(min);
+    } else {
+      sd = sd.toFixed(2);
+      e = e.toFixed(2);
     }
     return (
         <Fragment>
diff --git a/src/routes/project/financial-preview.tsx b/src/routes/project/financial-preview.tsx
index 1970411..1d4f8be 100644
--- a/src/routes/project/financial-preview.tsx
+++ b/src/routes/project/financial-preview.tsx
@@ -1,7 +1,7 @@
 import { FunctionalComponent, h } from "preact";
 import { Project } from "../../models/project";
 import { useProjectEstimations } from "../../hooks/use-project-estimations";
-import { getCurrency, defaults, getTaskCategoryCost } from "../../models/params";
+import { getCurrency, defaults, getTaskCategoryCost, getRoundUpEstimations } from "../../models/params";
 import { getMinMaxCosts, Cost } from "../../util/stat";
 import * as style from './style.module.css';
 import ProjectTimeUnit from "../../components/project-time-unit";
@@ -13,7 +13,7 @@ export interface FinancialPreviewProps {
 const FinancialPreview: FunctionalComponent<FinancialPreviewProps> = ({ project }) => {
     const estimations = useProjectEstimations(project);
     const costs = getMinMaxCosts(project, estimations.p99);
-    
+    const roundUp = getRoundUpEstimations(project);
     return (
         <div class="table-container">
             <table class="table is-bordered is-striped is-fullwidth">
@@ -33,13 +33,13 @@ const FinancialPreview: FunctionalComponent<FinancialPreviewProps> = ({ project
                     <tr>
                         <td class="is-narrow">Maximum</td>
                         <td>
-                          <CostDetails project={project} cost={costs.max} />
+                          <CostDetails project={project} cost={costs.max} roundUp={roundUp} />
                         </td>
                     </tr>
                     <tr>
                         <td class="is-narrow">Minimum</td>
                         <td>
-                          <CostDetails project={project} cost={costs.min} />
+                          <CostDetails project={project} cost={costs.min} roundUp={roundUp} />
                         </td>
                     </tr>
                 </tbody>
@@ -51,14 +51,15 @@ const FinancialPreview: FunctionalComponent<FinancialPreviewProps> = ({ project
 export interface CostDetailsProps {
   project: Project
   cost: Cost
+  roundUp: boolean
 }
 
-export const CostDetails:FunctionalComponent<CostDetailsProps> = ({ project, cost }) => {
+export const CostDetails:FunctionalComponent<CostDetailsProps> = ({ project, cost, roundUp }) => {
   return (
     <details>
       <summary><strong>
         ≈ {cost.totalCost} {getCurrency(project)}</strong>
-        <span class="is-pulled-right">{cost.totalTime} <ProjectTimeUnit project={project} /></span>
+        <span class="is-pulled-right">{ roundUp ? Math.ceil(cost.totalTime) : cost.totalTime.toFixed(2) } <ProjectTimeUnit project={project} /></span>
       </summary>
       <table class={`table is-fullwidth`}>
         <tbody>
@@ -70,7 +71,7 @@ export const CostDetails:FunctionalComponent<CostDetailsProps> = ({ project, cos
               <tr key={`task-category-cost-${taskCategory.id}`}>
                 <td class={`${style.noBorder} is-size-6`}>{taskCategory.label}</td>
                 <td class={`${style.noBorder} is-size-6`}>{details.cost} {getCurrency(project)}</td>
-                <td class={`${style.noBorder} is-size-6`}>{details.time} <ProjectTimeUnit project={project} /> × {getTaskCategoryCost(taskCategory)} {getCurrency(project)}</td>
+                <td class={`${style.noBorder} is-size-6`}>{ roundUp ? Math.ceil(details.time) : details.time.toFixed(2) } <ProjectTimeUnit project={project} /> × {getTaskCategoryCost(taskCategory)} {getCurrency(project)}</td>
               </tr>
             )
           })
diff --git a/src/util/stat.ts b/src/util/stat.ts
index 2ccb287..2113d71 100644
--- a/src/util/stat.ts
+++ b/src/util/stat.ts
@@ -39,11 +39,14 @@ export interface MeanRepartition {
 
 export function getTaskCategoriesMeanRepartition(project: Project): MeanRepartition {
   let projectMean = getProjectWeightedMean(project);
+
   const repartition: MeanRepartition = {};
+  
   Object.values(project.params.taskCategories).forEach(tc => {
     repartition[tc.id] = getTaskCategoryWeightedMean(tc.id, project) / projectMean;
     if (Number.isNaN(repartition[tc.id])) repartition[tc.id] = 0;
   });
+
   return repartition;
 }
 
@@ -67,18 +70,18 @@ export function getMinMaxCosts(project: Project, estimation: Estimation): MinMax
   Object.values(project.params.taskCategories).forEach(tc => {
     const cost = getTaskCategoryCost(tc);
 
-    const maxTime = Math.ceil((estimation.e + estimation.sd) * repartition[tc.id]);
+    const maxTime = Math.round((estimation.e + estimation.sd) * repartition[tc.id]);
     max.details[tc.id] = {
       time: maxTime,
-      cost: maxTime * cost,
+      cost: Math.ceil(maxTime) * cost,
     };
     max.totalTime += max.details[tc.id].time;
     max.totalCost += max.details[tc.id].cost;
 
-    const minTime = Math.ceil((estimation.e - estimation.sd) * repartition[tc.id]);
+    const minTime = Math.round((estimation.e - estimation.sd) * repartition[tc.id]);
     min.details[tc.id] = {
       time: minTime,
-      cost: minTime * cost,
+      cost: Math.ceil(minTime) * cost,
     };
     min.totalTime += min.details[tc.id].time;
     min.totalCost += min.details[tc.id].cost;