50.93% is the change from 538 to 812
Calculation steps:
[( 812 - 538 ) ÷ 538] x 100 = 50.93%
Formula
Percentage change = [(812 - 538) / 538] x 100
Subtract the new number by the original number
812 - 538 = 274
274 ÷ 538 = 0.5092936802973977
0.5092936802973977 x 100 = 50.93%