42.07% is the change from 542 to 770
Calculation steps:
[( 770 - 542 ) ÷ 542] x 100 = 42.07%
Formula
Percentage change = [(770 - 542) / 542] x 100
Subtract the new number by the original number
770 - 542 = 228
228 ÷ 542 = 0.42066420664206644
0.42066420664206644 x 100 = 42.07%