How to implement such a calculator in js?

Question

JavaScript

Hello,
I have a simple code:

<input type="text" value="100" placeholder="Введите вес продукта">
<ul>
<li>Белки: 23 гр</li>
<li>Жиры: 1,9 гр</li>
<li>Углеводы: 0,4 гр</li>
<li>Калории: 113 ккал</li>
</ul>

How can I make the calculator calculate the amount of calories, proteins, fats and carbohydrates based on the weight of the product entered in the input? Standard value: 100 grams

Answer 1

https://jsfiddle.net/deadvf29/
Instead of Math.random, you need to substitute some formulas or tables by which values ​​are calculated.