-72.7% is the change from 685 to 187
Calculation steps:
[( 187 - 685 ) ÷ 685] x 100 = -72.7%
Formula
Percentage change = [(187 - 685) / 685] x 100
Subtract the new number by the original number
187 - 685 = -498
-498 ÷ 685 = -0.727007299270073
-0.727007299270073 x 100 = -72.7%