235.1% is the change from 245 to 821
Calculation steps:
[( 821 - 245 ) ÷ 245] x 100 = 235.1%
Formula
Percentage change = [(821 - 245) / 245] x 100
Subtract the new number by the original number
821 - 245 = 576
576 ÷ 245 = 2.3510204081632655
2.3510204081632655 x 100 = 235.1%