-83.98% is the change from 986 to 158
Calculation steps:
[( 158 - 986 ) ÷ 986] x 100 = -83.98%
Formula
Percentage change = [(158 - 986) / 986] x 100
Subtract the new number by the original number
158 - 986 = -828
-828 ÷ 986 = -0.8397565922920892
-0.8397565922920892 x 100 = -83.98%