-50.25% is the change from 406 to 202
Calculation steps:
[( 202 - 406 ) ÷ 406] x 100 = -50.25%
Formula
Percentage change = [(202 - 406) / 406] x 100
Subtract the new number by the original number
202 - 406 = -204
-204 ÷ 406 = -0.5024630541871922
-0.5024630541871922 x 100 = -50.25%