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 161,519 units (Dollar, Euro, Pound, etc.) To Produce a Sum of Money of 6 units, for a period of 549,690 days (18,060 Months). The transaction fee is 2%
Detailed calculations of the simple (flat) interest rate
Notations and variables used:
Principal (initial amount), P = 161,519
Amount produced by the interest, I = 6
From date: Nov 23, 532
To date: Nov 23, 2037
Duration, T = 549,690 days (18,060 Months)
Transaction fee rate, F% = 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 × 6) ÷ (161,519 × 549,690))% =
(219,000 ÷ 88,785,379,110)% ≈
0.000002466622% ≈
0%
Calculate E, the amount earned after adding to the principal the amount produced by the simple (flat rate) interest
E = P + I =
161,519 + 6 =
161,525
Calculate L, the amount left after deducting the transaction fee
F = F% × E ⇒
L = E - F =
E - F% × E =
(1 - F%) × E =
(1 - 2%) × 161,525 =
98% × 161,525 =
158,294.5
Calculate Pr, the profit of the investment
Pr = L - P =
158,294.5 - 161,519 =
- 3,224.5
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)