-34.47% is the change from 206 to 135
Calculation steps:
[( 135 - 206 ) ÷ 206] x 100 = -34.47%
Formula
Percentage change = [(135 - 206) / 206] x 100
Subtract the new number by the original number
135 - 206 = -71
-71 ÷ 206 = -0.3446601941747573
-0.3446601941747573 x 100 = -34.47%