Asked: November 10, 20202020-11-10T12:04:53+00:00 2020-11-10T12:04:53+00:00 How to calculate natural gas usage? cameron 142 Questions 1 Answer 1 Best Answer 0 Points View Profile cameron Hi. How to calculate natural gas usage? natural gas 1 Answer Voted Oldest Recent alice 0 Questions 136 Answers 136 Best Answers 136 Points View Profile Best Answer alice 2020-11-10T12:05:13+00:00Added an answer on November 10, 2020 at 12:05 pm Natural gas use is measured in cubic feet and is billed in 100 cubic feet (1 ccf) of units. Each unit of measure in the right-hand dial is 100 cubic feet or 1 ccf. E.g, the reading in the illustration below is 4985 ccf. Take the difference (the amount used) and multiply it by the Commodity Charge. Record the present monthly reading 4985 Subtract last month’s reading 4900 Difference 85 Take the difference (the amount used) and multiply it by the Commodity Charge. Then multiply the amount used by the Purchased Gas Adjustment. Then, add these results to the Customer Charge to obtain your total charges before 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerLeave an answerCancel reply Attachment Select file Browse Featured image Select file Browse Save my name, email, and website in this browser for the next time I comment.