-99.5% is the change from 202 to 1
Calculation steps:
[( 1 - 202 ) ÷ 202] x 100 = -99.5%
Formula
Percentage change = [(1 - 202) / 202] x 100
Subtract the new number by the original number
1 - 202 = -201
-201 ÷ 202 = -0.995049504950495
-0.995049504950495 x 100 = -99.5%