SOLUTION
The original value given is
[tex]\text{ \$1200}[/tex]15% of the value give is
[tex]\begin{gathered} 15\text{ \% of 1200} \\ \end{gathered}[/tex]Since percentage means out of 100, then we have
[tex]\begin{gathered} \frac{15}{100}\times1200 \\ \text{Then} \\ =15\times12 \\ =180 \end{gathered}[/tex]Hence the decreasing value will be $180
Since the value is decreasing we have,
[tex]\begin{gathered} 1200-180 \\ =1020 \end{gathered}[/tex]Therefore
The decreasing of 15% from $1200 is $1020
Answer: $1020
