1697.78% is the change from 45 to 809
Calculation steps:
[( 809 - 45 ) ÷ 45] x 100 = 1697.78%
Formula
Percentage change = [(809 - 45) / 45] x 100
Subtract the new number by the original number
809 - 45 = 764
764 ÷ 45 = 16.977777777777778
16.977777777777778 x 100 = 1697.78%