-95.42% is the change from 459 to 21
Calculation steps:
[( 21 - 459 ) ÷ 459] x 100 = -95.42%
Formula
Percentage change = [(21 - 459) / 459] x 100
Subtract the new number by the original number
21 - 459 = -438
-438 ÷ 459 = -0.954248366013072
-0.954248366013072 x 100 = -95.42%