Harvey's Junk Jewelry started business January 1, 2018, and uses the LIFO retail method to estimate ending inventory. Listed below is data accumulated for the year ended December 31, 2018:

Cost Retail

Beg Inv $15,000 $23,000

Purchases 49,000 78,000

Freight-in 2,500 0

Purchase returns 1,700 2,600

Net markups 0 2,000

Net markdowns 0 4,100

Net sales 0 70,600

employee discounts 0 700

The estimated ending inventory at retail is:

And what is the denominator for the current period's cost-to-retail percentage?