665.88% is the change from 85 to 651
Calculation steps:
[( 651 - 85 ) ÷ 85] x 100 = 665.88%
Formula
Percentage change = [(651 - 85) / 85] x 100
Subtract the new number by the original number
651 - 85 = 566
566 ÷ 85 = 6.658823529411765
6.658823529411765 x 100 = 665.88%