260.36% is the change from 275 to 991
Calculation steps:
[( 991 - 275 ) ÷ 275] x 100 = 260.36%
Formula
Percentage change = [(991 - 275) / 275] x 100
Subtract the new number by the original number
991 - 275 = 716
716 ÷ 275 = 2.6036363636363635
2.6036363636363635 x 100 = 260.36%