If I had a 18 cubic foot fridge and I purchased a 30 cubic foot fridge how much more percent storage space do I have?

Question

Our original fridge was a 18 cubic foot. We now have a 30 cubic foot fridge.  The additional cubic storage space is 12. My wife is wondering what our additional percentage of storage space we have. I had told her that 50% of the old 18 cubic foot is 9 cu feet. So if we have a additional 12 cubic feet wouldn't we have more storage space than 50% of the original?  She is telling me 40% however i found 66% Please let me know it's a argumentative question thx

Answer 1

     A percent inrease or decrease is always the amount of change divided by the original. So you had an increase of 12 cu ft divided by 18 which results in .6666666 . Converted to a percent is 66.66666% or 66and2/3%.

Answer 2

Hello Era S ,

Can I have your contact e-mail

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