A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns shown, making the one-day sale price of the ski set $326. Find the original selling price of the ski set.
Let x be the original selling price of the ski set.
The markdown is 100 - 50 - 25 = 25%.
The sale price of the ski set after the 25% markdown is x - (25/100)x = 0.75x.
0.75x = 326.
x = 326 / 0.75 = $434.
The original selling price of the ski set is $434. Answer: \boxed{434}.