61.37% is the change from 510 to 823
Calculation steps:
[( 823 - 510 ) ÷ 510] x 100 = 61.37%
Formula
Percentage change = [(823 - 510) / 510] x 100
Subtract the new number by the original number
823 - 510 = 313
313 ÷ 510 = 0.6137254901960785
0.6137254901960785 x 100 = 61.37%