Silver Eagles are in the 25+% range, and bags of 90% silver coins are a little over 24%.
These charts are from goldchartsrus.com.
The prices are discovered using actual quotes from the largest internet retail sellers.
“Some economists, when thinking about long memory, are concerned that it undercuts the Efficient Market Hypothesis that prices fully reflect all relevant information; that the random walk is the best metaphor to describe such markets; and that you cannot beat such an unpredictable market. Well, the Efficient Market Hypothesis is no more than that, a hypothesis. Many a grand theory has died under the onslaught of real data.” Benoît B. Mandelbrot