-74.6% is the change from 685 to 174
Calculation steps:
[( 174 - 685 ) ÷ 685] x 100 = -74.6%
Formula
Percentage change = [(174 - 685) / 685] x 100
Subtract the new number by the original number
174 - 685 = -511
-511 ÷ 685 = -0.745985401459854
-0.745985401459854 x 100 = -74.6%