-92.1% is the change from 987 to 78
Calculation steps:
[( 78 - 987 ) ÷ 987] x 100 = -92.1%
Formula
Percentage change = [(78 - 987) / 987] x 100
Subtract the new number by the original number
78 - 987 = -909
-909 ÷ 987 = -0.9209726443768997
-0.9209726443768997 x 100 = -92.1%