204.81% is the change from 270 to 823
Calculation steps:
[( 823 - 270 ) ÷ 270] x 100 = 204.81%
Formula
Percentage change = [(823 - 270) / 270] x 100
Subtract the new number by the original number
823 - 270 = 553
553 ÷ 270 = 2.0481481481481483
2.0481481481481483 x 100 = 204.81%