-77.54% is the change from 641 to 144
Calculation steps:
[( 144 - 641 ) ÷ 641] x 100 = -77.54%
Formula
Percentage change = [(144 - 641) / 641] x 100
Subtract the new number by the original number
144 - 641 = -497
-497 ÷ 641 = -0.7753510140405616
-0.7753510140405616 x 100 = -77.54%