-58.45% is the change from 645 to 268
Calculation steps:
[( 268 - 645 ) ÷ 645] x 100 = -58.45%
Formula
Percentage change = [(268 - 645) / 645] x 100
Subtract the new number by the original number
268 - 645 = -377
-377 ÷ 645 = -0.5844961240310077
-0.5844961240310077 x 100 = -58.45%