How to calculate per gram
This is an explanation of how to actually calculate the amount per 1 gram or 100 grams with a calculator.
Price per gram
When you want to calculate the amount per gram, you can do so by dividing the amount by the number of grams.
For example, for $60 for 400 grams, calculate 60 divided by 400.
60 ÷ 400 = 0.15, so $0.15 per gram.
By comparing the amount per gram, you can easily compare which is cheaper.
Price per 100 grams
If you want to calculate per 100 grams, you can do this by dividing the amount by the number of grams and multiplying by 100.
For example, for $60 for 400 grams, calculate 60÷400×100.
60 ÷ 400 × 100 = 15, so it will be $15 per 100 grams.
Depending on the product, if the price per 100 grams is displayed, it may be easier to compare by calculating per 100 grams.
Calculating per 100 grams also has the advantage of making it easier to visualize the amount and price.