71.22% is the change from 337 to 577
Calculation steps:
[( 577 - 337 ) ÷ 337] x 100 = 71.22%
Formula
Percentage change = [(577 - 337) / 337] x 100
Subtract the new number by the original number
577 - 337 = 240
240 ÷ 337 = 0.712166172106825
0.712166172106825 x 100 = 71.22%