1764.44% is the change from 45 to 839
Calculation steps:
[( 839 - 45 ) ÷ 45] x 100 = 1764.44%
Formula
Percentage change = [(839 - 45) / 45] x 100
Subtract the new number by the original number
839 - 45 = 794
794 ÷ 45 = 17.644444444444446
17.644444444444446 x 100 = 1764.44%