-99.7% is the change from 986 to 3
Calculation steps:
[( 3 - 986 ) ÷ 986] x 100 = -99.7%
Formula
Percentage change = [(3 - 986) / 986] x 100
Subtract the new number by the original number
3 - 986 = -983
-983 ÷ 986 = -0.9969574036511156
-0.9969574036511156 x 100 = -99.7%