9.86% is the change from 355 to 390
Calculation steps:
[( 390 - 355 ) ÷ 355] x 100 = 9.86%
Formula
Percentage change = [(390 - 355) / 355] x 100
Subtract the new number by the original number
390 - 355 = 35
35 ÷ 355 = 0.09859154929577464
0.09859154929577464 x 100 = 9.86%