809.46% is the change from 74 to 673
Calculation steps:
[( 673 - 74 ) ÷ 74] x 100 = 809.46%
Formula
Percentage change = [(673 - 74) / 74] x 100
Subtract the new number by the original number
673 - 74 = 599
599 ÷ 74 = 8.094594594594595
8.094594594594595 x 100 = 809.46%