-86.04% is the change from 222 to 31
Calculation steps:
[( 31 - 222 ) ÷ 222] x 100 = -86.04%
Formula
Percentage change = [(31 - 222) / 222] x 100
Subtract the new number by the original number
31 - 222 = -191
-191 ÷ 222 = -0.8603603603603603
-0.8603603603603603 x 100 = -86.04%