140.45% is the change from 309 to 743
Calculation steps:
[( 743 - 309 ) ÷ 309] x 100 = 140.45%
Formula
Percentage change = [(743 - 309) / 309] x 100
Subtract the new number by the original number
743 - 309 = 434
434 ÷ 309 = 1.4045307443365695
1.4045307443365695 x 100 = 140.45%