261.31% is the change from 274 to 990
Calculation steps:
[( 990 - 274 ) ÷ 274] x 100 = 261.31%
Formula
Percentage change = [(990 - 274) / 274] x 100
Subtract the new number by the original number
990 - 274 = 716
716 ÷ 274 = 2.613138686131387
2.613138686131387 x 100 = 261.31%