-23.9% is the change from 657 to 500
Calculation steps:
[( 500 - 657 ) ÷ 657] x 100 = -23.9%
Formula
Percentage change = [(500 - 657) / 657] x 100
Subtract the new number by the original number
500 - 657 = -157
-157 ÷ 657 = -0.2389649923896499
-0.2389649923896499 x 100 = -23.9%