1244.26% is the change from 61 to 820
Calculation steps:
[( 820 - 61 ) ÷ 61] x 100 = 1244.26%
Formula
Percentage change = [(820 - 61) / 61] x 100
Subtract the new number by the original number
820 - 61 = 759
759 ÷ 61 = 12.442622950819672
12.442622950819672 x 100 = 1244.26%