89.74% is the change from 39 to 74
Calculation steps:
[( 74 - 39 ) ÷ 39] x 100 = 89.74%
Formula
Percentage change = [(74 - 39) / 39] x 100
Subtract the new number by the original number
74 - 39 = 35
35 ÷ 39 = 0.8974358974358975
0.8974358974358975 x 100 = 89.74%