75% is the change from 424 to 742
Calculation steps:
[( 742 - 424 ) ÷ 424] x 100 = 75%
Formula
Percentage change = [(742 - 424) / 424] x 100
Subtract the new number by the original number
742 - 424 = 318
318 ÷ 424 = 0.75
0.75 x 100 = 75%
Example