-64.59% is the change from 641 to 227
Calculation steps:
[( 227 - 641 ) ÷ 641] x 100 = -64.59%
Formula
Percentage change = [(227 - 641) / 641] x 100
Subtract the new number by the original number
227 - 641 = -414
-414 ÷ 641 = -0.6458658346333853
-0.6458658346333853 x 100 = -64.59%