diff --git a/package.json b/package.json
index 8261ef2a..2b042c19 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "@commander-js/extra-typings": "12.0.1",
     "@octokit/rest": "20.0.2",
     "commander": "12.0.0",
+    "decimal.js": "10.4.3",
     "dotenv": "16.4.5",
     "jsdom": "24.0.0",
     "markdown-it": "14.1.0",
diff --git a/src/get-activity.test.ts b/src/get-activity.test.ts
index db3c29db..753b6327 100644
--- a/src/get-activity.test.ts
+++ b/src/get-activity.test.ts
@@ -20,7 +20,7 @@ describe("GetActivity class", () => {
     const processor = new Processor();
     await processor.run(activity);
     processor.dump();
-  });
+  }, 30000);
 
   it("should create an instance of GetActivity", () => {
     expect(activity).toBeInstanceOf(GetActivity);
diff --git a/src/parser/content-evaluator-module.ts b/src/parser/content-evaluator-module.ts
index e7e48ab8..3fc1f96e 100644
--- a/src/parser/content-evaluator-module.ts
+++ b/src/parser/content-evaluator-module.ts
@@ -1,3 +1,4 @@
+import Decimal from "decimal.js";
 import OpenAI from "openai";
 import configuration from "../configuration/config-reader";
 import { GetActivity } from "../get-activity";
@@ -25,12 +26,13 @@ export class ContentEvaluatorModule implements Module {
         const commentBody = comment.content;
         if (specificationBody && commentBody) {
           const { relevance } = await this._evaluateComment(specificationBody, commentBody);
-          const reward = comment.score?.reward ? comment.score.reward * relevance : relevance;
+          const currentReward = new Decimal(comment.score?.reward ? comment.score.reward : 0);
+          const reward = currentReward.mul(relevance).toNumber();
           comments[i] = {
             ...comment,
             score: {
               ...comment.score,
-              relevance,
+              relevance: relevance.toNumber(),
               reward,
             },
           };
@@ -58,11 +60,11 @@ export class ContentEvaluatorModule implements Module {
         presence_penalty: 0,
       });
 
-      return { relevance: Number(response.choices[0].message.content) };
+      return { relevance: new Decimal(Number(response.choices[0].message.content)) };
     } catch (error) {
       console.error("Failed to evaluate comment", error);
       return {
-        relevance: 0,
+        relevance: relevance,
       };
     }
   }
diff --git a/src/parser/formatting-evaluator-module.ts b/src/parser/formatting-evaluator-module.ts
index 9e63c8ed..5be02ef5 100644
--- a/src/parser/formatting-evaluator-module.ts
+++ b/src/parser/formatting-evaluator-module.ts
@@ -1,3 +1,4 @@
+import Decimal from "decimal.js";
 import { JSDOM } from "jsdom";
 import MarkdownIt from "markdown-it";
 import configuration from "../configuration/config-reader";
@@ -44,17 +45,22 @@ export class FormattingEvaluatorModule implements Module {
         const formattingTotal = formatting
           ? Object.values(formatting).reduce(
               (acc, curr) =>
-                acc + curr.score * multiplierFactor.formattingMultiplier * (curr.count * multiplierFactor.wordValue),
-              0
+                acc.add(
+                  new Decimal(curr.score)
+                    .mul(multiplierFactor.formattingMultiplier)
+                    .mul(curr.count)
+                    .mul(multiplierFactor.wordValue)
+                ),
+              new Decimal(0)
             )
-          : 0;
+          : new Decimal(0);
         comment.score = {
           ...comment.score,
           formatting: {
             content: formatting,
             ...multiplierFactor,
           },
-          reward: comment.score?.reward ? comment.score.reward + formattingTotal : formattingTotal,
+          reward: (comment.score?.reward ? formattingTotal.add(comment.score.reward) : formattingTotal).toNumber(),
         };
       }
     }
diff --git a/src/parser/processor.ts b/src/parser/processor.ts
index 6b776b8b..aed7c93c 100644
--- a/src/parser/processor.ts
+++ b/src/parser/processor.ts
@@ -1,3 +1,4 @@
+import Decimal from "decimal.js";
 import * as fs from "fs";
 import configuration from "../configuration/config-reader";
 import { CommentType, GetActivity } from "../get-activity";
@@ -52,19 +53,19 @@ export class Processor {
   }
 
   _sumRewards(obj: Record<string, unknown>) {
-    let totalReward = 0;
+    let totalReward = new Decimal(0);
 
     for (const [key, value] of Object.entries(obj)) {
       if (Object.prototype.hasOwnProperty.call(obj, key)) {
         if (key === "reward" && typeof value === "number") {
-          totalReward += value;
+          totalReward = totalReward.add(value);
         } else if (typeof value === "object") {
-          totalReward += this._sumRewards(value as Record<string, unknown>);
+          totalReward = totalReward.add(this._sumRewards(value as Record<string, unknown>));
         }
       }
     }
 
-    return totalReward;
+    return totalReward.toNumber();
   }
 }
 
diff --git a/yarn.lock b/yarn.lock
index 01863eae..54993d7a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3400,7 +3400,7 @@ decamelize@^1.1.0:
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha512-z2S+W9X73hAUUki+N+9Za2lBlun89zigOyGrsax+KUQ6wKW4ZoWpEYBkGhQjwAjjDCkWxhY0VKEhk8wzY7F5cA==
 
-decimal.js@^10.4.3:
+decimal.js@10.4.3, decimal.js@^10.4.3:
   version "10.4.3"
   resolved "https://registry.yarnpkg.com/decimal.js/-/decimal.js-10.4.3.tgz#1044092884d245d1b7f65725fa4ad4c6f781cc23"
   integrity sha512-VBBaLc1MgL5XpzgIP7ny5Z6Nx3UrRkIViUkPUdtl9aya5amy3De1gsUUSB1g3+3sExYNjCAsAznmukyxCb1GRA==