-90.91% is the change from 22 to 2
Calculation steps:
[( 2 - 22 ) ÷ 22] x 100 = -90.91%
Formula
Percentage change = [(2 - 22) / 22] x 100
Subtract the new number by the original number
2 - 22 = -20
-20 ÷ 22 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%