-17.63% is the change from 987 to 813
Calculation steps:
[( 813 - 987 ) ÷ 987] x 100 = -17.63%
Formula
Percentage change = [(813 - 987) / 987] x 100
Subtract the new number by the original number
813 - 987 = -174
-174 ÷ 987 = -0.1762917933130699
-0.1762917933130699 x 100 = -17.63%