-74.42% is the change from 860 to 220
Calculation steps:
[( 220 - 860 ) ÷ 860] x 100 = -74.42%
Formula
Percentage change = [(220 - 860) / 860] x 100
Subtract the new number by the original number
220 - 860 = -640
-640 ÷ 860 = -0.7441860465116279
-0.7441860465116279 x 100 = -74.42%