133.75% is the change from 320 to 748
Calculation steps:
[( 748 - 320 ) ÷ 320] x 100 = 133.75%
Formula
Percentage change = [(748 - 320) / 320] x 100
Subtract the new number by the original number
748 - 320 = 428
428 ÷ 320 = 1.3375
1.3375 x 100 = 133.75%