83.21% is the change from 542 to 993
Calculation steps:
[( 993 - 542 ) ÷ 542] x 100 = 83.21%
Formula
Percentage change = [(993 - 542) / 542] x 100
Subtract the new number by the original number
993 - 542 = 451
451 ÷ 542 = 0.8321033210332104
0.8321033210332104 x 100 = 83.21%