-79.09% is the change from 636 to 133
Calculation steps:
[( 133 - 636 ) ÷ 636] x 100 = -79.09%
Formula
Percentage change = [(133 - 636) / 636] x 100
Subtract the new number by the original number
133 - 636 = -503
-503 ÷ 636 = -0.7908805031446541
-0.7908805031446541 x 100 = -79.09%