-77.22% is the change from 641 to 146
Calculation steps:
[( 146 - 641 ) ÷ 641] x 100 = -77.22%
Formula
Percentage change = [(146 - 641) / 641] x 100
Subtract the new number by the original number
146 - 641 = -495
-495 ÷ 641 = -0.7722308892355694
-0.7722308892355694 x 100 = -77.22%