-22.39% is the change from 987 to 766
Calculation steps:
[( 766 - 987 ) ÷ 987] x 100 = -22.39%
Formula
Percentage change = [(766 - 987) / 987] x 100
Subtract the new number by the original number
766 - 987 = -221
-221 ÷ 987 = -0.22391084093211752
-0.22391084093211752 x 100 = -22.39%