-33.98% is the change from 206 to 136
Calculation steps:
[( 136 - 206 ) ÷ 206] x 100 = -33.98%
Formula
Percentage change = [(136 - 206) / 206] x 100
Subtract the new number by the original number
136 - 206 = -70
-70 ÷ 206 = -0.33980582524271846
-0.33980582524271846 x 100 = -33.98%