9585.71% is the change from 7 to 678
Calculation steps:
[( 678 - 7 ) ÷ 7] x 100 = 9585.71%
Formula
Percentage change = [(678 - 7) / 7] x 100
Subtract the new number by the original number
678 - 7 = 671
671 ÷ 7 = 95.85714285714286
95.85714285714286 x 100 = 9585.71%