235.71% is the change from 280 to 940
Calculation steps:
[( 940 - 280 ) ÷ 280] x 100 = 235.71%
Formula
Percentage change = [(940 - 280) / 280] x 100
Subtract the new number by the original number
940 - 280 = 660
660 ÷ 280 = 2.357142857142857
2.357142857142857 x 100 = 235.71%