248.21% is the change from 280 to 975
Calculation steps:
[( 975 - 280 ) ÷ 280] x 100 = 248.21%
Formula
Percentage change = [(975 - 280) / 280] x 100
Subtract the new number by the original number
975 - 280 = 695
695 ÷ 280 = 2.482142857142857
2.482142857142857 x 100 = 248.21%