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 140,875 units (Dollar, Euro, Pound, etc.) To Produce a Sum of Money of 1,144 units, for a period of 461,028 days (15,147 Months). The transaction fee is 0.2%
Detailed calculations of the simple (flat) interest rate
Notations and variables used:
Principal (initial amount), P = 140,875
Amount produced by the interest, I = 1,144
From date: Aug 6, 756
To date: Nov 6, 2018
Duration, T = 461,028 days (15,147 Months)
Transaction fee rate, F% = 0.2%
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 × 1,144) ÷ (140,875 × 461,028))% =
(41,756,000 ÷ 64,947,319,500)% ≈
0.000642921068% ≈
0%
Calculate E, the amount earned after adding to the principal the amount produced by the simple (flat rate) interest
E = P + I =
140,875 + 1,144 =
142,019
Calculate L, the amount left after deducting the transaction fee
F = F% × E ⇒
L = E - F =
E - F% × E =
(1 - F%) × E =
(1 - 0.2%) × 142,019 =
99.8% × 142,019 =
141,734.962 ≈
141,734.96
Calculate Pr, the profit of the investment
Pr = L - P =
141,734.962 - 140,875 =
859.962 ≈
859.96
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)