Purchases anomaly - why does the total value on top RHS of screen not equal the summation of all purchases?

Purchases anomaly - why does the total value on top RHS of ‘Purchase Management’ screen not equal the summation of all purchases??

i.e. te text on top RHS says “80 Items found (Total Amount: GBP 5,771.28)”

BUT when I export the 80 items listed as a CSV file and add them up the total is 7,869 and not 5,771.28… confused?

You have 3 invoice denominated in Russian Ruble (RUB) total 2,140. In the total displayed in the top RH corner the system is taking their Sterling value. I’m pretty sure this is what’s accounting for the difference here.