36 lines
1.9 KiB
Dart
36 lines
1.9 KiB
Dart
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import 'package:flutter_application_1/enums.dart';
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// Berechnet das investierte Geld über eine bestimmte Zeit
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double calculateInvestedMoney(double initialCapital, double monthlySavingsRate, double time, List<double> investedMoneyList) {
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double investedMoney = initialCapital;
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investedMoneyList.clear();
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for (int i = 0; i < time; i++) {
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investedMoney += monthlySavingsRate * 12; // Jährliche Sparrate hinzufügen
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investedMoney = investedMoney.roundToDouble();
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investedMoneyList.add(investedMoney); // Investierten Betrag zur Liste hinzufügen
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}
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return investedMoney;
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}
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// Berechnet den Zinseszins über eine bestimmte Zeit.
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double calculateCompoundInterest(double initialCapital, double monthlySavingsRate, double interestRate, double time, PayoutInterval payoutInterval, List<double> investedMoneyList, List<double> compoundInterestList) {
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double compoundInterest = initialCapital;
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compoundInterestList.clear();
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if (payoutInterval == PayoutInterval.yearly) { // Berechnung für jährliche Auszahlung
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for (int i = 0; i < time; i++) {
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compoundInterest += compoundInterest * (interestRate / 100) + monthlySavingsRate * 12; // Zinsen und jährliche Sparrate hinzufügen
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compoundInterest = compoundInterest.roundToDouble();
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compoundInterestList.add(compoundInterest - investedMoneyList[i]); // Zinseszins zur Liste hinzufügen
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}
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} else { // Berechnung für monatliche Auszahlung
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for (int i = 0; i < time; i++) {
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for (int j = 0; j < 12; j++) {
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compoundInterest += compoundInterest * ((interestRate / 100) / 12) + monthlySavingsRate; // Monatliche Zinsen und Sparrate hinzufügen
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compoundInterest = compoundInterest.roundToDouble();
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}
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compoundInterestList.add(compoundInterest - investedMoneyList[i]); // Zinseszins zur Liste hinzufügen
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}
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}
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return compoundInterest; // Gesamtkapital nach Zinseszinsberechnung zurückgeben
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}
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