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 2.5 units, for a period of 10,227 days (336 Months). The transaction fee is 760%
Detailed calculations of the simple (flat) interest rate
Notations and variables used:
Principal (initial amount), P = 100,000
Amount produced by the interest, I = 2.5
From date: Aug 22, 2018
To date: Aug 22, 2046
Duration, T = 10,227 days (336 Months)
Transaction fee rate, F% = 760%
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 × 2.5) ÷ (100,000 × 10,227))% =
(91,250 ÷ 1,022,700,000)% ≈
0.000089224602% ≈
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 + 2.5 =
100,002.5
Calculate L, the amount left after deducting the transaction fee
F = F% × E ⇒
L = E - F =
E - F% × E =
(1 - F%) × E =
(1 - 760%) × 100,002.5 =
- 660% × 100,002.5 =
- 660,016.5
Calculate Pr, the profit of the investment
Pr = L - P =
- 660,016.5 - 100,000 =
- 760,016.5
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)