-79.25% is the change from 641 to 133
Calculation steps:
[( 133 - 641 ) ÷ 641] x 100 = -79.25%
Formula
Percentage change = [(133 - 641) / 641] x 100
Subtract the new number by the original number
133 - 641 = -508
-508 ÷ 641 = -0.7925117004680188
-0.7925117004680188 x 100 = -79.25%