Yield & costs

A yield observation needs a payment source, period, valuation rule, and cost model. These guides distinguish application fees from retained revenue and show how APR, APY, and holding-period assumptions lead to different calculations. Use the worked examples as accounting exercises, not forecasts.

Keep reward quantities separate from their dollar value and include entry, claim, reinvestment, and exit costs where relevant to the stated scenario. A mathematically precise rate does not establish that the assumed payment persists or that an exit is available. Begin with the metrics article to distinguish fees from revenue, then work through the cost examples. Save the chosen compounding frequency and valuation time next to the result. The useful output is a transparent scenario with its exclusions intact, not an attractive percentage detached from the conditions that produced it.