Question 541404
If it's sold at a 28% discount, that means it's 28% less than what it was. "Less" means subtract. So you take 100% of what it was, subtract 28% and the new price (price B) is 100-28=72% of the original price (price A). To put that in a formula:
{{{b=0.72*a}}}
We know what price B is - $522, so plug that into the formula and solve for A. Hope this helps!