# How the APY is Calculated

### Compound Interest Equation (Principal + Interest)

$$
Α= Ρ e^Rt
$$

Where:

* A = Total Accrued Amount (principal + interest)
* P = Principal Amount
* r = Rate of Interest per year in decimal; r = R/100
* R = Rate of Interest per year as a percent; R = r \* 100
* t = Time Period involved in months or years

It should be noted that rate r and time t should be expressed in the same time units, such as months or years. Time conversions based on a 365-day year have 30.4167 days/month and 91.2501 days/quarter. There are 360 days in a year, with 30 days per month and 90 days per quarter.

### <mark style="color:green;">Example 1:</mark>

If the user invests $1000 worth $C24 for a period of 1 year at 0.018% compounding every 10 minutes. He will have $12,846,157.26 C24 after his investment maturity

**P = (Principle + Interest) =&#x20;**<mark style="color:green;">**$1,000**</mark>

**A = (Total Accrued Amount) =&#x20;**<mark style="color:green;">**$12,846,157.26**</mark>


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