60.91% is the change from 504 to 811
Calculation steps:
[( 811 - 504 ) ÷ 504] x 100 = 60.91%
Formula
Percentage change = [(811 - 504) / 504] x 100
Subtract the new number by the original number
811 - 504 = 307
307 ÷ 504 = 0.6091269841269841
0.6091269841269841 x 100 = 60.91%