-29.73% is the change from 222 to 156
Calculation steps:
[( 156 - 222 ) ÷ 222] x 100 = -29.73%
Formula
Percentage change = [(156 - 222) / 222] x 100
Subtract the new number by the original number
156 - 222 = -66
-66 ÷ 222 = -0.2972972972972973
-0.2972972972972973 x 100 = -29.73%