-76.5% is the change from 685 to 161
Calculation steps:
[( 161 - 685 ) ÷ 685] x 100 = -76.5%
Formula
Percentage change = [(161 - 685) / 685] x 100
Subtract the new number by the original number
161 - 685 = -524
-524 ÷ 685 = -0.7649635036496351
-0.7649635036496351 x 100 = -76.5%