34.55% is the change from 55 to 74
Calculation steps:
[( 74 - 55 ) ÷ 55] x 100 = 34.55%
Formula
Percentage change = [(74 - 55) / 55] x 100
Subtract the new number by the original number
74 - 55 = 19
19 ÷ 55 = 0.34545454545454546
0.34545454545454546 x 100 = 34.55%