55.48% is the change from 310 to 482
Calculation steps:
[( 482 - 310 ) ÷ 310] x 100 = 55.48%
Formula
Percentage change = [(482 - 310) / 310] x 100
Subtract the new number by the original number
482 - 310 = 172
172 ÷ 310 = 0.5548387096774193
0.5548387096774193 x 100 = 55.48%