54.8% is the change from 542 to 839
Calculation steps:
[( 839 - 542 ) ÷ 542] x 100 = 54.8%
Formula
Percentage change = [(839 - 542) / 542] x 100
Subtract the new number by the original number
839 - 542 = 297
297 ÷ 542 = 0.5479704797047971
0.5479704797047971 x 100 = 54.8%