106.88% is the change from 320 to 662
Calculation steps:
[( 662 - 320 ) ÷ 320] x 100 = 106.88%
Formula
Percentage change = [(662 - 320) / 320] x 100
Subtract the new number by the original number
662 - 320 = 342
342 ÷ 320 = 1.06875
1.06875 x 100 = 106.88%