Solution-
The original or cost price of the good = $21.00
Then, it is marked up 78.7%, i.e the price is 78.7% more than the initial price, which in this case is $21.
The new price is,
[tex]21+(21\times \frac{78.7}{100})=\$37.527[/tex]
Then, 10% profit must be earned after selling the good. Hence, the list price must be 10% more of 37.527,
So, the selling or list price is
[tex]37.527+(37.527\times \frac{10}{100})=\$41.279 \approx \$41.28[/tex]
∴ $41.28 is the selling price of the good and this is how you got it.
