#### Principal (initial amount), P = 7,200

#### Annual simple interest rate, R = 9.5%

#### From date: Oct 5, 2017

#### To date: Oct 9, 2017

#### Duration, T = 4 days

#### Commission fee (withdrawal or payment), F = 0%

#### No. of days in a year, N = 365

## I = Simple interest:

#### I = (P × R × T) ÷ N =

#### (7,200 × 9.5% × 4) ÷ 365 =

#### (7,200 × 9.5 × 4) ÷ (365 × 100) =

#### 273,600 ÷ 36,500 ≈

#### 7.495890410959 ≈

#### 7.5

## B = Amount earned:

#### B = P + I =

#### 7,200 + 7.495890410959 =

#### 7,207.495890410959 ≈

#### 7,207.5