-72.5% is the change from 680 to 187
Calculation steps:
[( 187 - 680 ) ÷ 680] x 100 = -72.5%
Formula
Percentage change = [(187 - 680) / 680] x 100
Subtract the new number by the original number
187 - 680 = -493
-493 ÷ 680 = -0.725
-0.725 x 100 = -72.5%