hello
to solve this question, we have to know the ratio of the decrease to the original value and find the percentage of it
[tex]\begin{gathered} \text{original}=100 \\ \text{new}=88 \\ \text{decrease}=100-88=12 \\ \text{percentage decrease}=\frac{decrease}{actual\text{ product}}\times100 \\ \text{percentage decrease=}\frac{12}{100}\times100 \\ \text{percentage decrease=0.12}\times100 \\ \text{percentage decrease=12\%} \end{gathered}[/tex]
