-73.92% is the change from 836 to 218
Calculation steps:
[( 218 - 836 ) ÷ 836] x 100 = -73.92%
Formula
Percentage change = [(218 - 836) / 836] x 100
Subtract the new number by the original number
218 - 836 = -618
-618 ÷ 836 = -0.7392344497607656
-0.7392344497607656 x 100 = -73.92%