-0.99% is the change from 202 to 200
Calculation steps:
[( 200 - 202 ) ÷ 202] x 100 = -0.99%
Formula
Percentage change = [(200 - 202) / 202] x 100
Subtract the new number by the original number
200 - 202 = -2
-2 ÷ 202 = -0.009900990099009901
-0.009900990099009901 x 100 = -0.99%