150% is the change from 296 to 740
Calculation steps:
[( 740 - 296 ) ÷ 296] x 100 = 150%
Formula
Percentage change = [(740 - 296) / 296] x 100
Subtract the new number by the original number
740 - 296 = 444
444 ÷ 296 = 1.5
1.5 x 100 = 150%
Example