45.52% is the change from 268 to 390
Calculation steps:
[( 390 - 268 ) ÷ 268] x 100 = 45.52%
Formula
Percentage change = [(390 - 268) / 268] x 100
Subtract the new number by the original number
390 - 268 = 122
122 ÷ 268 = 0.4552238805970149
0.4552238805970149 x 100 = 45.52%