Calculations can calculate order total, business ROI, personality test score from numeric answers or answers which are assigned a number. Calculations are in the editor’s menu in the top right under the calculator button.

Calculations are like variable declarations in programming or formulas in Google Sheets: the variable name is on the left, before the “=”. On the right, after the “=”, is a formula, number or text. You can use numbers, arithmetic operations (addition, subtraction, multiplication and division) in formulas. You can insert questions or other variables into formulas.

To do so, drag a question bubble or a variable into the formula or type "@" and select them in the dropdown. This essentially mentions the answer or variable in the formula just as in the question text. Long-click on a question in a formula collapses or expands all questions in formulas.

A question makes sense in a formula only when it can be counted, which is two cases:

• The answer is a number. Numeric questions are Rating and Score, and also Text with the setting "Numbers only",
• The answer has points assigned to it. Radio, Checkbox and Pictures questions can have points. To assign points, enable "Custom points" in project settings.

There are limitations to the formulas. Actions are performed in order of priority, as in arithmetic. There are no parentheses in formulas. Instead of parentheses, you can assign intermediate variables or simply expand parentheses.

There is no “percentage” operator in formulas. To calculate a percentage of a number, e.g. a 19% VAT, multiply that number by 0.19, as in the example below.

This is an example of calculating the amount of the order in a knitwear shop.

• vat — amount of value added tax, 19% of subtotal
• cost — the cost of an item. As the options of the question “What should we knit for you?” are assigned numbers (points), the answer to this question is evaluated to a number in calculations. For example, a cost of a hat is 10.
• quantity — the question “How many” is a text question with “Numbers only” setting
• subtotal — the provisional order amount, without tax and shipping. Questions with subject and quantity are multiplied directly by each other, without intermediate variables.
• shipping — shipping cost
• total — final order amount with tax and shipping