1722.22% is the change from 45 to 820
Calculation steps:
[( 820 - 45 ) ÷ 45] x 100 = 1722.22%
Formula
Percentage change = [(820 - 45) / 45] x 100
Subtract the new number by the original number
820 - 45 = 775
775 ÷ 45 = 17.22222222222222
17.22222222222222 x 100 = 1722.22%