81.66% is the change from 409 to 743
Calculation steps:
[( 743 - 409 ) ÷ 409] x 100 = 81.66%
Formula
Percentage change = [(743 - 409) / 409] x 100
Subtract the new number by the original number
743 - 409 = 334
334 ÷ 409 = 0.8166259168704156
0.8166259168704156 x 100 = 81.66%