252.86% is the change from 280 to 988
Calculation steps:
[( 988 - 280 ) ÷ 280] x 100 = 252.86%
Formula
Percentage change = [(988 - 280) / 280] x 100
Subtract the new number by the original number
988 - 280 = 708
708 ÷ 280 = 2.5285714285714285
2.5285714285714285 x 100 = 252.86%