53.59% is the change from 390 to 599
Calculation steps:
[( 599 - 390 ) ÷ 390] x 100 = 53.59%
Formula
Percentage change = [(599 - 390) / 390] x 100
Subtract the new number by the original number
599 - 390 = 209
209 ÷ 390 = 0.5358974358974359
0.5358974358974359 x 100 = 53.59%