43.3% is the change from 515 to 738
Calculation steps:
[( 738 - 515 ) ÷ 515] x 100 = 43.3%
Formula
Percentage change = [(738 - 515) / 515] x 100
Subtract the new number by the original number
738 - 515 = 223
223 ÷ 515 = 0.4330097087378641
0.4330097087378641 x 100 = 43.3%