-90.91% is the change from 242 to 22
Calculation steps:
[( 22 - 242 ) ÷ 242] x 100 = -90.91%
Formula
Percentage change = [(22 - 242) / 242] x 100
Subtract the new number by the original number
22 - 242 = -220
-220 ÷ 242 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%