47.9% is the change from 668 to 988
Calculation steps:
[( 988 - 668 ) ÷ 668] x 100 = 47.9%
Formula
Percentage change = [(988 - 668) / 668] x 100
Subtract the new number by the original number
988 - 668 = 320
320 ÷ 668 = 0.47904191616766467
0.47904191616766467 x 100 = 47.9%