-55.38% is the change from 641 to 286
Calculation steps:
[( 286 - 641 ) ÷ 641] x 100 = -55.38%
Formula
Percentage change = [(286 - 641) / 641] x 100
Subtract the new number by the original number
286 - 641 = -355
-355 ÷ 641 = -0.5538221528861155
-0.5538221528861155 x 100 = -55.38%