-93.31% is the change from 987 to 66
Calculation steps:
[( 66 - 987 ) ÷ 987] x 100 = -93.31%
Formula
Percentage change = [(66 - 987) / 987] x 100
Subtract the new number by the original number
66 - 987 = -921
-921 ÷ 987 = -0.9331306990881459
-0.9331306990881459 x 100 = -93.31%