**Content**

·CRR

·Native DEL Coin

·The CRR parameter when creating a coin

·Formulas for determining the value of coins

Calculating the cost of buying a coin

Calculating the cost of selling a coin

Calculation of the current price of 1 coin

**CRR**

A distinctive feature of the Decimal blockchain is the specifics of the economic model of coins. All the advantages follow from it:

1.simple coin issue,

2.the ability to exchange them for any other within

3.networks, commission payment with any coins of the Decimal ecosystem.

**Native DEL Coin** The native DEL coin, in addition to the traditional ones, performs the function of providing. Each custom coin is backed up by a guarantee in the form of a certain amount of DEL. The size of this guarantee in relation to the total issue of a custom coin directly affects the value curve of this coin.

**The CRR parameter when creating a coin** The CRR parameter is set when creating coins and then the value curve remains unchanged forever. When market conditions and the supply/demand balance change, the value of the coin moves along the calculated curve, up or down.

**Formulas for determining the value of coins** The key parameters in the Decimal network are: 1.Reserve 2.CRR 3.The total number of coins issued.

All of them are involved in calculating the cost of buying or selling. The very existence of two formulas is a consequence of the nonlinear nature of the change in the value of coins.

**Calculating the cost of buying a coin** where

Reserve - current reserve in DEL; Want to buy - the number of coins to buy;Issue - the total number of coins; CRR - the coefficient of Constant Ratio to the Reserve (for example, 20 for 20%)

**Calculating the cost of selling a coin** Sale Amount = Reserve * (1 — (1 — Want to sell/Issue) ^ (100/ CRR)) where Reserve - the current reserve in DEL; Want to sell - the number of coins for sale;Issue - the total number of coins; CRR - the coefficient of Constant Ratio to the Reserve (for example, 20 for 20%)

**Calculation of the current price of 1 coin** Price = Reserve * (1-(1-1/Issue)^ (100 / CRR)) where Reserve - current reserve in DEL;Issue - the total number of coins; CRR - the coefficient of a Constant Ratio to the Reserve (for example, 20 for 20%).