-86.49% is the change from 222 to 30
Calculation steps:
[( 30 - 222 ) ÷ 222] x 100 = -86.49%
Formula
Percentage change = [(30 - 222) / 222] x 100
Subtract the new number by the original number
30 - 222 = -192
-192 ÷ 222 = -0.8648648648648649
-0.8648648648648649 x 100 = -86.49%