230.65% is the change from 248 to 820
Calculation steps:
[( 820 - 248 ) ÷ 248] x 100 = 230.65%
Formula
Percentage change = [(820 - 248) / 248] x 100
Subtract the new number by the original number
820 - 248 = 572
572 ÷ 248 = 2.306451612903226
2.306451612903226 x 100 = 230.65%