Sale Price calculates your selling price using eBay & PayPal Fees, item cost, postage and others to guarantee the profit margin you need. No need to guess your eBay selling price anymore! Sale Price includes fields to change your eBay & PayPal fees according to what you pay. Sale Price works by calculating the fixed costs like eBay listing fee, as well as percentage costs such as eBay category fees and outputs a selling price that will earn you X% profit margin. No worries if you already have