-55.73% is the change from 646 to 286
Calculation steps:
[( 286 - 646 ) ÷ 646] x 100 = -55.73%
Formula
Percentage change = [(286 - 646) / 646] x 100
Subtract the new number by the original number
286 - 646 = -360
-360 ÷ 646 = -0.5572755417956656
-0.5572755417956656 x 100 = -55.73%