-83.17% is the change from 808 to 136
Calculation steps:
[( 136 - 808 ) ÷ 808] x 100 = -83.17%
Formula
Percentage change = [(136 - 808) / 808] x 100
Subtract the new number by the original number
136 - 808 = -672
-672 ÷ 808 = -0.8316831683168316
-0.8316831683168316 x 100 = -83.17%