704.71% is the change from 85 to 684
Calculation steps:
[( 684 - 85 ) ÷ 85] x 100 = 704.71%
Formula
Percentage change = [(684 - 85) / 85] x 100
Subtract the new number by the original number
684 - 85 = 599
599 ÷ 85 = 7.047058823529412
7.047058823529412 x 100 = 704.71%