compare price set at £0 but is showing as same as sale price.

[kristiedavies]

I've built a site using the refresh theme.  I've changed the compare price to RRP and it is working fine for products where the compare price is higher than the sale price.  However, when I have left the field blank as the RRP price is not significantly different it repeats the sale price.  Please help

This page is incorrect and needs help

https://wolfonline.co.uk/products/teal-fleecy-clogs-cloggies-from-town-country

This page is correct:

https://wolfonline.co.uk/products/zmad?_pos=7&_sid=6dfae033b&_ss=r

please help!