56.8% is the change from 338 to 530
Calculation steps:
[( 530 - 338 ) ÷ 338] x 100 = 56.8%
Formula
Percentage change = [(530 - 338) / 338] x 100
Subtract the new number by the original number
530 - 338 = 192
192 ÷ 338 = 0.5680473372781065
0.5680473372781065 x 100 = 56.8%