251.07% is the change from 280 to 983
Calculation steps:
[( 983 - 280 ) ÷ 280] x 100 = 251.07%
Formula
Percentage change = [(983 - 280) / 280] x 100
Subtract the new number by the original number
983 - 280 = 703
703 ÷ 280 = 2.5107142857142857
2.5107142857142857 x 100 = 251.07%