In my last post, I explained how to calculate the monthly savings of an employee using Articulate Storyline. In this blog, we will see how to **calculate simple interest (SI) using the rapid authoring tool.**

Earlier, we created a course for a financial organization to train its new employees on the process of calculating the monthly savings of an employee. The course was a major success, and so, we were asked to develop a course on the calculation of SI.

Let us now see how we can compute SI using Storyline.

**Step 1: **Create a new slide and insert three **Numeric Entry **fields to input the values of **Principal** **amount**, **Rate of interest** and **Time period** with respect to the text fields.

The principal amount entered should be in rupees.

The rate of interest should be calculated as a percentage of the principal, on a monthly basis.

The time period corresponds to the number of months for which the interest is calculated.

**Step 2:** Three **Numeric Entry** Variables are created automatically for the above three **Numeric Entry** fields.

Rename those Numeric Entry variables (**Numeric Entry, Numeric Entry 1, **and** Numeric Entry 2**) as **Principal**, **Interest rate **and **Time period.**

**Step 3: **Create a numeric variable** SI **with initial value as zero, and display the value of variable using **“%”**

Symbol.

**Step 4: **Insert a button **Calculate **from the insert menu.

The formula to calculate the simple interest is: **SI = (Principal * Interest rate * Time period) / 100**

To perform the above calculation, add the below triggers in the specified order.

**Trigger 1: **Assign the value of** Principal **to** SI **variable.

**Trigger 2:** Multiply the value of **Time period** with **SI** value.

**Trigger 3:** Multiply the value of **Interest rate** with **SI** value.

**Trigger 4:** Divide **SI** value by 100.

The net value of the **SI** variable is the simple interest, calculated on the principal amount.

Now, preview or publish the course and check the output.

This way, we can perform different calculations using Storyline’s triggers. Hope this blog isinformative. Please share your thoughts.