255.71% is the change from 280 to 996
Calculation steps:
[( 996 - 280 ) ÷ 280] x 100 = 255.71%
Formula
Percentage change = [(996 - 280) / 280] x 100
Subtract the new number by the original number
996 - 280 = 716
716 ÷ 280 = 2.557142857142857
2.557142857142857 x 100 = 255.71%