38.92% is the change from 668 to 928
Calculation steps:
[( 928 - 668 ) ÷ 668] x 100 = 38.92%
Formula
Percentage change = [(928 - 668) / 668] x 100
Subtract the new number by the original number
928 - 668 = 260
260 ÷ 668 = 0.38922155688622756
0.38922155688622756 x 100 = 38.92%