683.72% is the change from 86 to 674
Calculation steps:
[( 674 - 86 ) ÷ 86] x 100 = 683.72%
Formula
Percentage change = [(674 - 86) / 86] x 100
Subtract the new number by the original number
674 - 86 = 588
588 ÷ 86 = 6.837209302325581
6.837209302325581 x 100 = 683.72%