248.57% is the change from 280 to 976
Calculation steps:
[( 976 - 280 ) ÷ 280] x 100 = 248.57%
Formula
Percentage change = [(976 - 280) / 280] x 100
Subtract the new number by the original number
976 - 280 = 696
696 ÷ 280 = 2.4857142857142858
2.4857142857142858 x 100 = 248.57%