56.15% is the change from 520 to 812
Calculation steps:
[( 812 - 520 ) ÷ 520] x 100 = 56.15%
Formula
Percentage change = [(812 - 520) / 520] x 100
Subtract the new number by the original number
812 - 520 = 292
292 ÷ 520 = 0.5615384615384615
0.5615384615384615 x 100 = 56.15%