247.86% is the change from 280 to 974
Calculation steps:
[( 974 - 280 ) ÷ 280] x 100 = 247.86%
Formula
Percentage change = [(974 - 280) / 280] x 100
Subtract the new number by the original number
974 - 280 = 694
694 ÷ 280 = 2.4785714285714286
2.4785714285714286 x 100 = 247.86%