57.36% is the change from 394 to 620
Calculation steps:
[( 620 - 394 ) ÷ 394] x 100 = 57.36%
Formula
Percentage change = [(620 - 394) / 394] x 100
Subtract the new number by the original number
620 - 394 = 226
226 ÷ 394 = 0.5736040609137056
0.5736040609137056 x 100 = 57.36%