8.6% is the change from 500 to 543
Calculation steps:
[( 543 - 500 ) ÷ 500] x 100 = 8.6%
Formula
Percentage change = [(543 - 500) / 500] x 100
Subtract the new number by the original number
543 - 500 = 43
43 ÷ 500 = 0.086
0.086 x 100 = 8.6%
Example