278.54% is the change from 261 to 988
Calculation steps:
[( 988 - 261 ) ÷ 261] x 100 = 278.54%
Formula
Percentage change = [(988 - 261) / 261] x 100
Subtract the new number by the original number
988 - 261 = 727
727 ÷ 261 = 2.78544061302682
2.78544061302682 x 100 = 278.54%