How do you convert the number of contracts in a BiyaPay perpetual contract? Understand an order’s size using a USDT quote

When viewing an order on the BiyaPay perpetual contract page, the quantity may be displayed in “contracts,” while the quote may be priced per unit of the underlying asset. To find out how much of the underlying asset the original order represents, first check the contract specifications for the selected contract, then apply them to the number of contracts in your order. To calculate the notional value, multiply the result by the USDT quote used. All three figures should come from the same contract.

BiyaPay’s product documentation explains that each USDT contract represents a specified quantity of the underlying asset, and uses BTCUSDT to illustrate the relationship between the number of contracts and the corresponding asset quantity. To check this in practice, go to the contract section of the trading page, select a product available to your current account, and check the quantity unit and specifications used by that contract. If you already have a position, you can first read the full code from your records, then return to the same contract page to verify it and avoid using the specifications for a different product. BiyaPay USDT Contract Specifications and Access⁠

Let’s work through an example using demonstration data only. Suppose each contract in a fictional contract represents 0.01 units of the underlying asset, and an order is entered for three contracts. The quantity of the underlying represented is 0.03 units. Using an example quote of 50,000 USDT per unit, the calculated notional value is 1,500 USDT. These two figures answer the questions of quantity and scale, respectively. For the actual contract specifications and price, refer to the contract the user is viewing.

Let’s use account records as an example. The original order shows three contracts, but the trade record shows that only two were filled. The actual fill for this order therefore corresponds to 0.02 units of the underlying asset. If the third contract has not yet traded, it can be recorded as the unfilled portion of the order. To verify the quantity corresponding to the actual position, rely on the real fills and position. The original order for three contracts can still be used to track the order, while the amount calculation should reflect only the portion that was actually executed.

The price also needs to be chosen appropriately. To reconstruct the notional amount at the time of execution, use the price and quantity in the actual trade record. If the goal is to understand the current scale, you can make a separate estimate using the current reference price for the same contract, and note which price field was used. For example, if the actual fill price differs from the current mark price, it’s normal for the two calculations to produce different results. Note the purpose of each figure in your records so you can recalculate them later.

You can also compare how the same number of contracts differs across contracts. Suppose each contract of A represents 0.01 units of asset A, while each contract of B represents 0.1 units of asset B. If you enter three contracts for both, the quantity fields look the same, but the converted underlying quantity and notional value must be calculated using each contract’s own specifications and price. When switching instruments, first check the full symbol, then check the units used in the quantity field. If the page already displays the quantity directly in units of the underlying asset, use that quantity for subsequent checks to avoid applying the contract multiplier again. BiyaPay Contract Quantity and Notional Value Explained⁠

Many users also see margin fields. When reviewing your notes, you can record the notional amount and the margin shown on the page as separate items. After calculating the notional value using the example figures above, you still need to read the margin from the actual page for that contract and the current account. If you’re reviewing an old order, you can record the contract symbol, the units used for the quantity, the actual filled quantity, and the price at the time. If you’re checking a current order, also include the margin requirement actually shown on the page. Keep readings from different times with their respective timestamps.

You can also note the original unit used in the page’s input field. For example, first write down in your notes that two contracts were actually filled, then record the underlying quantity converted using the contract specifications at the time. Later, even if you’re looking only at the numbers, you’ll be able to tell which step the calculation reached.

In this scenario, the BiyaPay contract page is used to confirm the instrument and the units used for the quantity, while the order and trade records distinguish the submitted quantity from the executed quantity. For example, if an old screenshot only shows “three contracts,” you can return to the original contract and check the per-contract specification to determine the underlying quantity represented by that figure. Then look up the actual fill price to reconstruct the notional amount used in the review.