64.29% is the change from 42 to 69
Calculation steps:
[( 69 - 42 ) ÷ 42] x 100 = 64.29%
Formula
Percentage change = [(69 - 42) / 42] x 100
Subtract the new number by the original number
69 - 42 = 27
27 ÷ 42 = 0.6428571428571429
0.6428571428571429 x 100 = 64.29%