39.16% is the change from 549 to 764
Calculation steps:
[( 764 - 549 ) ÷ 549] x 100 = 39.16%
Formula
Percentage change = [(764 - 549) / 549] x 100
Subtract the new number by the original number
764 - 549 = 215
215 ÷ 549 = 0.39162112932604737
0.39162112932604737 x 100 = 39.16%