14.58% is the change from 542 to 621
Calculation steps:
[( 621 - 542 ) ÷ 542] x 100 = 14.58%
Formula
Percentage change = [(621 - 542) / 542] x 100
Subtract the new number by the original number
621 - 542 = 79
79 ÷ 542 = 0.14575645756457564
0.14575645756457564 x 100 = 14.58%