-40.16% is the change from 645 to 386
Calculation steps:
[( 386 - 645 ) ÷ 645] x 100 = -40.16%
Formula
Percentage change = [(386 - 645) / 645] x 100
Subtract the new number by the original number
386 - 645 = -259
-259 ÷ 645 = -0.4015503875968992
-0.4015503875968992 x 100 = -40.16%