-95.04% is the change from 685 to 34
Calculation steps:
[( 34 - 685 ) ÷ 685] x 100 = -95.04%
Formula
Percentage change = [(34 - 685) / 685] x 100
Subtract the new number by the original number
34 - 685 = -651
-651 ÷ 685 = -0.9503649635036496
-0.9503649635036496 x 100 = -95.04%