73.9% is the change from 318 to 553
Calculation steps:
[( 553 - 318 ) ÷ 318] x 100 = 73.9%
Formula
Percentage change = [(553 - 318) / 318] x 100
Subtract the new number by the original number
553 - 318 = 235
235 ÷ 318 = 0.7389937106918238
0.7389937106918238 x 100 = 73.9%