-73.63% is the change from 641 to 169
Calculation steps:
[( 169 - 641 ) ÷ 641] x 100 = -73.63%
Formula
Percentage change = [(169 - 641) / 641] x 100
Subtract the new number by the original number
169 - 641 = -472
-472 ÷ 641 = -0.7363494539781591
-0.7363494539781591 x 100 = -73.63%