70% is the change from 440 to 748
Calculation steps:
[( 748 - 440 ) ÷ 440] x 100 = 70%
Formula
Percentage change = [(748 - 440) / 440] x 100
Subtract the new number by the original number
748 - 440 = 308
308 ÷ 440 = 0.7
0.7 x 100 = 70%
Example