I want to find value by a percentage on a particular value.

For example

Scenario 1

10 * 75% = 7.5

Scenario 2

20 * 75% = 15

So I tried this but gave an error. So anyone how to solve this?

CodePudding user response：

The % symbol in Kotlin, and many other languages, isn't actually used for percentages. It's the symbol for the 'modulo' operator, and does something different from what you want.

To calculate a percentage, divide the value by 100.

For example, 75% of 10 is 10 * 0.75.