-90.71% is the change from 226 to 21
Calculation steps:
[( 21 - 226 ) ÷ 226] x 100 = -90.71%
Formula
Percentage change = [(21 - 226) / 226] x 100
Subtract the new number by the original number
21 - 226 = -205
-205 ÷ 226 = -0.9070796460176991
-0.9070796460176991 x 100 = -90.71%