54.6% is the change from 500 to 773
Calculation steps:
[( 773 - 500 ) ÷ 500] x 100 = 54.6%
Formula
Percentage change = [(773 - 500) / 500] x 100
Subtract the new number by the original number
773 - 500 = 273
273 ÷ 500 = 0.546
0.546 x 100 = 54.6%
Example