-78.67% is the change from 633 to 135
Calculation steps:
[( 135 - 633 ) ÷ 633] x 100 = -78.67%
Formula
Percentage change = [(135 - 633) / 633] x 100
Subtract the new number by the original number
135 - 633 = -498
-498 ÷ 633 = -0.7867298578199052
-0.7867298578199052 x 100 = -78.67%