137.14% is the change from 280 to 664
Calculation steps:
[( 664 - 280 ) ÷ 280] x 100 = 137.14%
Formula
Percentage change = [(664 - 280) / 280] x 100
Subtract the new number by the original number
664 - 280 = 384
384 ÷ 280 = 1.3714285714285714
1.3714285714285714 x 100 = 137.14%