Principal (initial amount), P = 4,000
Annual simple interest rate, R = 2%
From date: Sep 6, 2017
To date: Oct 6, 2017
Duration, T = 30 days
Commission fee (withdrawal or payment), F = 854%
No. of days in a year, N = 365
I = Simple interest:
I = (P × R × T) ÷ N =
(4,000 × 2% × 30) ÷ 365 =
(4,000 × 2 × 30) ÷ (365 × 100) =
240,000 ÷ 36,500 ≈
6.575342465753 ≈
6.58
B = Amount earned before deducting the
commission fee (withdrawal or payment):
B = P + I =
4,000 + 6.575342465753 =
4,006.575342465753 ≈
4,006.58
D = Amount earned after deducting the
commission fee (withdrawal or payment):
D = B - F =
B - F% × B =
(1 - F%) × B =
(1 - 854%) × 4,006.575342465753 =
- 754% × 4,006.575342465753 ≈
- 30,209.578082191778 ≈
- 30,209.58
Pr = Investment profit:
Pr = D - P =
- 30,209.578082191778 - 4,000 =
- 34,209.578082191778 ≈
- 34,209.58