Calculation with rounding to an integer

Question

Options for calculating the percentage with rounding to an integer

Answer 1

int b = (int) Math.round(a);

https://www.sololearn.com/discuss/2155764/?ref=app

Answer 2

The task is elementary and classical, calculate the discount on the product. That 's the formula I used to calculate:

price-Math.Floor(price/100.0*discount)

But I think there are probably more compact and beautiful options. Who thinks what? We can discuss it...