OSRS drop value: compare loot without assuming hourly profit
A creature's known drop value is a starting point for comparing loot, not the amount you will collect on every kill. Open the included rewards before choosing a hunt. A large rare-drop contribution, an unavailable price or a location-specific reward can change how useful the subtotal is for your trip.
What goes into the known subtotal?
For a supported drop, the estimate combines its chance, quantity and available item price. A guaranteed reward contributes its whole estimated value; a rare reward contributes only its chance-weighted share. Several independent rolls need their recorded roll count as well as the rate per roll.
A cow makes the basic comparison easy to inspect. Its ordinary rewards include 
cowhide, 
raw beef and 
bones. The example below reads the same included rewards and prices as the creature's subtotal.
These figures use the available price snapshot. They do not subtract supplies, travel time or selling costs.
The table lets you see which item contributes to the estimate. It does not assume that every item fits in your inventory, that you pick everything up, or that an Exchange offer fills at the displayed quote.
Why can a creature be only partly valued?
A reward needs a usable rate, quantity and price before it can contribute to this estimate. A missing value is not zero. Special encounters and conditional rewards also need the right context; a reward available only in one location must not be counted on every kill everywhere.
Open the blue dragon's drop table to compare its ordinary dragon bones and hide with the less frequent rewards. Keep distinct coin quantities and rates separate rather than assuming that every row with the same item name describes one interchangeable reward. Coins have their face value; they do not need an Exchange price.
A quantity range can support an average only when its distribution is understood. The midpoint is not a universal rule for text containing two numbers. Alternative rewards, conditions and unresolved quantities remain outside a simple subtotal until their mechanics can be represented properly.
The known-value list therefore needs to be read alongside the creature's full drop table. A lower subtotal can reflect missing information, not necessarily worse actual loot.
Is the subtotal profit per hour?
No. It does not supply your kill speed, subtract food and other supplies, or account for banking and travel. It also does not turn a price snapshot into a completed sale. Compare the number with the costs and pace of the trip you can actually sustain.
The same caution applies to rare drops. Their contribution is an average over repeated attempts, not a promise that a short session will pay for itself. A player can finish a trip without receiving the rare reward that contributes much of the average.
Use drop odds for the separate question of receiving at least one particular item after a chosen number of attempts. The dry-streak guide explains why a target probability is not a deadline.
What should I open before choosing the encounter?
Follow the creature's map and inspect the actual area and floor. Then compare the equipment you intend to wear in the gear builder. A target link keeps the creature attached to the preparation, but does not automatically choose gear or predict damage.
Keep the creature, location and reward conditions together when sharing a plan. Compare supported sets of rewards from encounters you can reach, survive and repeat with the supplies you have chosen, rather than the largest number in the list.