691.76% is the change from 85 to 673
Calculation steps:
[( 673 - 85 ) ÷ 85] x 100 = 691.76%
Formula
Percentage change = [(673 - 85) / 85] x 100
Subtract the new number by the original number
673 - 85 = 588
588 ÷ 85 = 6.91764705882353
6.91764705882353 x 100 = 691.76%