Percentages

This page is about the Percentages class available in PeyrSharp.Core.Maths. You can find here all of its methods.

INFO

This class is static.

Compatibility

The Percentages class is part of the PeyrSharp.Core module, which is compatible with all of these frameworks and platforms:

Package/Platform	Windows	macOS	Linux + others
Core	✅	✅	✅
Framework	.NET 6	.NET 7	.NET 8
Core	✅	✅	✅

Methods

IncreaseBy(value, increaseRate)

Definition

Returns the value after an increase of x% as a double.

Arguments

Type	Name	Meaning
double	value	The original value.
double	increaseRate	The increase percentage (as x/100d).

Usage

using PeyrSharp.Core.Maths;

double price = Percentages.IncreaseBy(100, 10/100d); // Increase the price by 10%
// price = 110

DecreaseBy(value, decreaseRate)

Definition

Returns the value after a decrease of x% as a double.

Arguments

Type	Name	Meaning
double	value	The original value.
double	decreaseRate	The decrease percentage (as x/100d).

Usage

using PeyrSharp.Core.Maths;

double price = Percentages.DecreaseBy(100, 10/100d); // Decrease the price by 10%
// price = 90

GetInvertedEvolutionRate(evolutionRate)

Definition

Gets the coefficient to get back to the original value after a percentage increase/decrease. It returns a double.

Arguments

Type	Name	Meaning
double	evolutionRate	The evolution rate to get the inverse of.

Usage

using PeyrSharp.Core.Maths;

double ev = Percentages.GetInvertedEvolutionRate(1.1);
// ev = -0.09090909090909094

ProportionToPercentageString(proportion)

Definition

Formats a proportion to a string.

Arguments

Type	Name	Meaning
double	proportion	The proportion to get the percentage of.

Usage

using PeyrSharp.Core.Maths;

double proportion = Percentages.ProportionToPercentageString(0.5);
// proportion = 50%