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Analyzing Coin Value Data to Determine Intermediate Values
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<p>[QUOTE="kanga, post: 5149109, member: 9270"]I spend a fair amount of time trying to determine how much to pay for or to bid on a coin.</p><p>Particularly tough is when there are no reported prices for a certain grade.</p><p>For instance, what if you can find several results for VF-30 and XF-40 but you are looking at a VF-35.</p><p>I know it's not linear, i.e., the average (50%) between VF-30 and XF-40 prices will be a bit high for VF-35.</p><p>It probably should be more like 40% of the difference.</p><p>I'd like to pin down that percentage more accurately.</p><p><br /></p><p>Unfortunately I know just enough math to get ideas on how to determine that.</p><p>And thanks to Excel I can try my ideas out.</p><p>But is my math on solid enough ground to put my money where my ideas tell me to go?</p><p>Only testing will tell me.</p><p><br /></p><p>And of course a math analysis cannot take into account your desire for the coin or its eye appeal.</p><p>But maybe it's a starting point.</p><p><br /></p><p><b>Anyone get that deep into determining a price?</b></p><p>Or do I have too much time on my hands because of COVID <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie12" alt="o_O" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="kanga, post: 5149109, member: 9270"]I spend a fair amount of time trying to determine how much to pay for or to bid on a coin. Particularly tough is when there are no reported prices for a certain grade. For instance, what if you can find several results for VF-30 and XF-40 but you are looking at a VF-35. I know it's not linear, i.e., the average (50%) between VF-30 and XF-40 prices will be a bit high for VF-35. It probably should be more like 40% of the difference. I'd like to pin down that percentage more accurately. Unfortunately I know just enough math to get ideas on how to determine that. And thanks to Excel I can try my ideas out. But is my math on solid enough ground to put my money where my ideas tell me to go? Only testing will tell me. And of course a math analysis cannot take into account your desire for the coin or its eye appeal. But maybe it's a starting point. [B]Anyone get that deep into determining a price?[/B] Or do I have too much time on my hands because of COVID o_O[/QUOTE]
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Analyzing Coin Value Data to Determine Intermediate Values
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