-79.21% is the change from 202 to 42
Calculation steps:
[( 42 - 202 ) ÷ 202] x 100 = -79.21%
Formula
Percentage change = [(42 - 202) / 202] x 100
Subtract the new number by the original number
42 - 202 = -160
-160 ÷ 202 = -0.7920792079207921
-0.7920792079207921 x 100 = -79.21%