-20.97% is the change from 987 to 780
Calculation steps:
[( 780 - 987 ) ÷ 987] x 100 = -20.97%
Formula
Percentage change = [(780 - 987) / 987] x 100
Subtract the new number by the original number
780 - 987 = -207
-207 ÷ 987 = -0.20972644376899696
-0.20972644376899696 x 100 = -20.97%