133.64% is the change from 321 to 750
Calculation steps:
[( 750 - 321 ) ÷ 321] x 100 = 133.64%
Formula
Percentage change = [(750 - 321) / 321] x 100
Subtract the new number by the original number
750 - 321 = 429
429 ÷ 321 = 1.3364485981308412
1.3364485981308412 x 100 = 133.64%