-32.45% is the change from 986 to 666
Calculation steps:
[( 666 - 986 ) ÷ 986] x 100 = -32.45%
Formula
Percentage change = [(666 - 986) / 986] x 100
Subtract the new number by the original number
666 - 986 = -320
-320 ÷ 986 = -0.32454361054766734
-0.32454361054766734 x 100 = -32.45%