90.91% is the change from 264 to 504
Calculation steps:
[( 504 - 264 ) ÷ 264] x 100 = 90.91%
Formula
Percentage change = [(504 - 264) / 264] x 100
Subtract the new number by the original number
504 - 264 = 240
240 ÷ 264 = 0.9090909090909091
0.9090909090909091 x 100 = 90.91%