55.03% is the change from 318 to 493
Calculation steps:
[( 493 - 318 ) ÷ 318] x 100 = 55.03%
Formula
Percentage change = [(493 - 318) / 318] x 100
Subtract the new number by the original number
493 - 318 = 175
175 ÷ 318 = 0.550314465408805
0.550314465408805 x 100 = 55.03%