49.82% is the change from 542 to 812
Calculation steps:
[( 812 - 542 ) ÷ 542] x 100 = 49.82%
Formula
Percentage change = [(812 - 542) / 542] x 100
Subtract the new number by the original number
812 - 542 = 270
270 ÷ 542 = 0.4981549815498155
0.4981549815498155 x 100 = 49.82%