276.81% is the change from 263 to 991
Calculation steps:
[( 991 - 263 ) ÷ 263] x 100 = 276.81%
Formula
Percentage change = [(991 - 263) / 263] x 100
Subtract the new number by the original number
991 - 263 = 728
728 ÷ 263 = 2.7680608365019013
2.7680608365019013 x 100 = 276.81%