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 21,463 units (Dollar, Euro, Pound, etc.) To Produce a Sum of Money of 253 units, for a period of 695,450 days (22,849 Months). The transaction fee is 3%
Detailed calculations of the simple (flat) interest rate
Notations and variables used:
Principal (initial amount), P = 21,463
Amount produced by the interest, I = 253
From date: Feb 19, 118
To date: Mar 19, 2022
Duration, T = 695,450 days (22,849 Months)
Transaction fee rate, F% = 3%
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 × 253) ÷ (21,463 × 695,450))% =
(9,234,500 ÷ 14,926,443,350)% ≈
0.000618667139% ≈
0%
Calculate E, the amount earned after adding to the principal the amount produced by the simple (flat rate) interest
E = P + I =
21,463 + 253 =
21,716
Calculate L, the amount left after deducting the transaction fee
F = F% × E ⇒
L = E - F =
E - F% × E =
(1 - F%) × E =
(1 - 3%) × 21,716 =
97% × 21,716 =
21,064.52
Calculate Pr, the profit of the investment
Pr = L - P =
21,064.52 - 21,463 =
- 398.48
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)