83.13% is the change from 409 to 749
Calculation steps:
[( 749 - 409 ) ÷ 409] x 100 = 83.13%
Formula
Percentage change = [(749 - 409) / 409] x 100
Subtract the new number by the original number
749 - 409 = 340
340 ÷ 409 = 0.8312958435207825
0.8312958435207825 x 100 = 83.13%