-13.78% is the change from 987 to 851
Calculation steps:
[( 851 - 987 ) ÷ 987] x 100 = -13.78%
Formula
Percentage change = [(851 - 987) / 987] x 100
Subtract the new number by the original number
851 - 987 = -136
-136 ÷ 987 = -0.13779128672745694
-0.13779128672745694 x 100 = -13.78%