98.6% is the change from 500 to 993
Calculation steps:
[( 993 - 500 ) ÷ 500] x 100 = 98.6%
Formula
Percentage change = [(993 - 500) / 500] x 100
Subtract the new number by the original number
993 - 500 = 493
493 ÷ 500 = 0.986
0.986 x 100 = 98.6%
Example