-95.26% is the change from 422 to 20
Calculation steps:
[( 20 - 422 ) ÷ 422] x 100 = -95.26%
Formula
Percentage change = [(20 - 422) / 422] x 100
Subtract the new number by the original number
20 - 422 = -402
-402 ÷ 422 = -0.95260663507109
-0.95260663507109 x 100 = -95.26%