57.48% is the change from 515 to 811
Calculation steps:
[( 811 - 515 ) ÷ 515] x 100 = 57.48%
Formula
Percentage change = [(811 - 515) / 515] x 100
Subtract the new number by the original number
811 - 515 = 296
296 ÷ 515 = 0.574757281553398
0.574757281553398 x 100 = 57.48%