-64.74% is the change from 641 to 226
Calculation steps:
[( 226 - 641 ) ÷ 641] x 100 = -64.74%
Formula
Percentage change = [(226 - 641) / 641] x 100
Subtract the new number by the original number
226 - 641 = -415
-415 ÷ 641 = -0.6474258970358814
-0.6474258970358814 x 100 = -64.74%