241.79% is the change from 280 to 957
Calculation steps:
[( 957 - 280 ) ÷ 280] x 100 = 241.79%
Formula
Percentage change = [(957 - 280) / 280] x 100
Subtract the new number by the original number
957 - 280 = 677
677 ÷ 280 = 2.4178571428571427
2.4178571428571427 x 100 = 241.79%