-37.73% is the change from 220 to 137
Calculation steps:
[( 137 - 220 ) ÷ 220] x 100 = -37.73%
Formula
Percentage change = [(137 - 220) / 220] x 100
Subtract the new number by the original number
137 - 220 = -83
-83 ÷ 220 = -0.37727272727272726
-0.37727272727272726 x 100 = -37.73%