1835.71% is the change from 42 to 813
Calculation steps:
[( 813 - 42 ) ÷ 42] x 100 = 1835.71%
Formula
Percentage change = [(813 - 42) / 42] x 100
Subtract the new number by the original number
813 - 42 = 771
771 ÷ 42 = 18.357142857142858
18.357142857142858 x 100 = 1835.71%