How to show price customer saved from RRP

-- HikaShop version -- : 2.6.0
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-- PHP version -- : 5.4.43

Hello, I have a recommended retail price and under that there is an our price for each product, I would like under the "our price" the price that they save saying something like you save £--- whatever quantity they save from the RRP. Is there a way of doing this?

I am not confident enough with coding to do this especially getting it to work out how much the custoemer would save for each product, Is there someone who could do this for me? How much would this cost?