866.2% is the change from 71 to 686
Calculation steps:
[( 686 - 71 ) ÷ 71] x 100 = 866.2%
Formula
Percentage change = [(686 - 71) / 71] x 100
Subtract the new number by the original number
686 - 71 = 615
615 ÷ 71 = 8.661971830985916
8.661971830985916 x 100 = 866.2%