265.31% is the change from 271 to 990
Calculation steps:
[( 990 - 271 ) ÷ 271] x 100 = 265.31%
Formula
Percentage change = [(990 - 271) / 271] x 100
Subtract the new number by the original number
990 - 271 = 719
719 ÷ 271 = 2.6531365313653135
2.6531365313653135 x 100 = 265.31%