48.87% is the change from 399 to 594
Calculation steps:
[( 594 - 399 ) ÷ 399] x 100 = 48.87%
Formula
Percentage change = [(594 - 399) / 399] x 100
Subtract the new number by the original number
594 - 399 = 195
195 ÷ 399 = 0.48872180451127817
0.48872180451127817 x 100 = 48.87%