-58.5% is the change from 641 to 266
Calculation steps:
[( 266 - 641 ) ÷ 641] x 100 = -58.5%
Formula
Percentage change = [(266 - 641) / 641] x 100
Subtract the new number by the original number
266 - 641 = -375
-375 ÷ 641 = -0.5850234009360374
-0.5850234009360374 x 100 = -58.5%