I'm using SmugMug to host and sell my photography images, and I'm looking to set my prices. I can't seem to figure out a formula to simply calculate my final profit after all deductions.
The printing company charges $\$0.25$ for a $4\times 6$ image. I want to make a $\$5$ profit off of the images but the hosting site charges $15\%$ of my profit for their expenses.
If I charge $\$5.25$ for a print, my final profit will be $\$4.85$
$((\$5.25 - \$0.25)-15\%)$ $=$ $\$4.85$
If I charge $\$5.40$ for a print, my final profit will be $\$5$ (which is what I want). $((\$5.40 - \$0.25)-15\%)$ $=$ $\$5.00$
What would the formula look like to set my prices in such a way that I will always make a $\$5$ profit off of an image?