50% is the change from 148 to 222
Calculation steps:
[( 222 - 148 ) ÷ 148] x 100 = 50%
Formula
Percentage change = [(222 - 148) / 148] x 100
Subtract the new number by the original number
222 - 148 = 74
74 ÷ 148 = 0.5
0.5 x 100 = 50%
Example