9685.71% is the change from 7 to 685
Calculation steps:
[( 685 - 7 ) ÷ 7] x 100 = 9685.71%
Formula
Percentage change = [(685 - 7) / 7] x 100
Subtract the new number by the original number
685 - 7 = 678
678 ÷ 7 = 96.85714285714286
96.85714285714286 x 100 = 9685.71%