65.96% is the change from 235 to 390
Calculation steps:
[( 390 - 235 ) ÷ 235] x 100 = 65.96%
Formula
Percentage change = [(390 - 235) / 235] x 100
Subtract the new number by the original number
390 - 235 = 155
155 ÷ 235 = 0.6595744680851063
0.6595744680851063 x 100 = 65.96%