-72.13% is the change from 671 to 187
Calculation steps:
[( 187 - 671 ) ÷ 671] x 100 = -72.13%
Formula
Percentage change = [(187 - 671) / 671] x 100
Subtract the new number by the original number
187 - 671 = -484
-484 ÷ 671 = -0.7213114754098361
-0.7213114754098361 x 100 = -72.13%