Simple (Flat Rate) Interest Calculator: Calculate the Annual Simple (Flat) Interest Rate of the Invested Amount of Money (Principal, Initial Starting Amount Lent, Deposited or Borrowed), of 100,000 units (Dollar, Euro, Pound, etc.) To Produce a Sum of Money of 10 units, for a period of 474,816 days (15,600 Months). The transaction fee is 230%
Detailed calculations of the simple (flat) interest rate
Notations and variables used:
Principal (initial amount), P = 100,000
Amount produced by the interest, I = 10
From date: Dec 31, 718
To date: Dec 31, 2018
Duration, T = 474,816 days (15,600 Months)
Transaction fee rate, F% = 230%
Transaction fee amount, F
Number of days in a year, N = 365
Calculate R, the annual simple (flat) interest rate to earn the amount I
The simple (flat rate) interest calculation formula:
I = (P × R × T) ÷ N ⇒
R = (N × I) ÷ (P × T) =
100% × (N × I) ÷ (P × T) =
((100 × N × I) ÷ (P × T))% =
((100 × 365 × 10) ÷ (100,000 × 474,816))% =
(365,000 ÷ 47,481,600,000)% ≈
0.000007687188% ≈
0%
Calculate E, the amount earned after adding to the principal the amount produced by the simple (flat rate) interest
E = P + I =
100,000 + 10 =
100,010
Calculate L, the amount left after deducting the transaction fee
F = F% × E ⇒
L = E - F =
E - F% × E =
(1 - F%) × E =
(1 - 230%) × 100,010 =
- 130% × 100,010 =
- 130,013
Calculate Pr, the profit of the investment
Pr = L - P =
- 130,013 - 100,000 =
- 230,013
Used symbols: % percent, ÷ divide, × multiply, = equal, ≈ approximately equal.
Writing numbers: comma ',' used as thousands separator, point '.' used as a decimal mark.
Simple (flat) interest rate, more calculations:
Calculator: annual simple interest rate to negociate to earn a certain amount
Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)