-89.6% is the change from 202 to 21
Calculation steps:
[( 21 - 202 ) ÷ 202] x 100 = -89.6%
Formula
Percentage change = [(21 - 202) / 202] x 100
Subtract the new number by the original number
21 - 202 = -181
-181 ÷ 202 = -0.8960396039603961
-0.8960396039603961 x 100 = -89.6%