TOW & TP figures completely different

Hello,

We have a site (@PIN..) that is showing completely different figures between the TOW reports and the TP period 1 reports.. 

We've checked the obvious things but can't see what could be causing it.

As an example, last night, TOW shows net sales of £4,406.05. TP shows net sales of £2880.05. 

Any ideas what we could check?

Thanks