-16.82% is the change from 987 to 821
Calculation steps:
[( 821 - 987 ) ÷ 987] x 100 = -16.82%
Formula
Percentage change = [(821 - 987) / 987] x 100
Subtract the new number by the original number
821 - 987 = -166
-166 ÷ 987 = -0.16818642350557245
-0.16818642350557245 x 100 = -16.82%