55.6% is the change from 491 to 764
Calculation steps:
[( 764 - 491 ) ÷ 491] x 100 = 55.6%
Formula
Percentage change = [(764 - 491) / 491] x 100
Subtract the new number by the original number
764 - 491 = 273
273 ÷ 491 = 0.5560081466395111
0.5560081466395111 x 100 = 55.6%