59.74% is the change from 390 to 623
Calculation steps:
[( 623 - 390 ) ÷ 390] x 100 = 59.74%
Formula
Percentage change = [(623 - 390) / 390] x 100
Subtract the new number by the original number
623 - 390 = 233
233 ÷ 390 = 0.5974358974358974
0.5974358974358974 x 100 = 59.74%