50.68% is the change from 146 to 220
Calculation steps:
[( 220 - 146 ) ÷ 146] x 100 = 50.68%
Formula
Percentage change = [(220 - 146) / 146] x 100
Subtract the new number by the original number
220 - 146 = 74
74 ÷ 146 = 0.5068493150684932
0.5068493150684932 x 100 = 50.68%