Compare two gold-market quotations after you place them on the same unit basis. See the directional spread, percentage difference and which market is higher.
Unlike a percentage difference formula based on an average denominator, the premium metric uses the cheaper market as the acquisition reference.
Two market prices should represent comparable purity, weight, currency and product type. For example, a physical retail coin and a wholesale benchmark may have legitimate structural differences.
Transaction costs, settlement conditions, taxes, transport, liquidity and timing can be more important than the raw price difference.
The premium metric uses the lower market price as the reference.
Convert them to the same currency first.
No. Use the raw market prices here and model costs separately.