84.23% is the change from 539 to 993
Calculation steps:
[( 993 - 539 ) ÷ 539] x 100 = 84.23%
Formula
Percentage change = [(993 - 539) / 539] x 100
Subtract the new number by the original number
993 - 539 = 454
454 ÷ 539 = 0.8423005565862709
0.8423005565862709 x 100 = 84.23%