Bugfix/fix division by zero in performance calculation (#3695)

* Fix division by zero

* Update changelog

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## 2.106.0-alpha.1 - 2024-08-24
+## Unreleased
 
 ### Changed
 

apps/api/src/app/portfolio/calculator/portfolio-calculator.ts

@@ -713,9 +713,13 @@ export abstract class PortfolioCalculator {
           netPerformanceWithCurrencyEffect:
             netPerformanceWithCurrencyEffectSinceStartDate,
           netPerformanceInPercentage:
-            netPerformanceSinceStartDate / timeWeightedInvestmentValue,
+            timeWeightedInvestmentValue === 0
+              ? 0
+              : netPerformanceSinceStartDate / timeWeightedInvestmentValue,
           netPerformanceInPercentageWithCurrencyEffect:
-            netPerformanceWithCurrencyEffectSinceStartDate /
+            timeWeightedInvestmentValue === 0
+              ? 0
+              : netPerformanceWithCurrencyEffectSinceStartDate /
                 timeWeightedInvestmentValue,
           // TODO: Add net worth with valuables
           // netWorth: totalCurrentValueWithCurrencyEffect