-74.73% is the change from 641 to 162
Calculation steps:
[( 162 - 641 ) ÷ 641] x 100 = -74.73%
Formula
Percentage change = [(162 - 641) / 641] x 100
Subtract the new number by the original number
162 - 641 = -479
-479 ÷ 641 = -0.7472698907956318
-0.7472698907956318 x 100 = -74.73%