A Cadbury Dairy Milk 200g chocolate bar costs 1.50 on Amazon UK. The same chocolate bar costs $1.77 on Amazon USA. The nominal dollar-pound exchange rate is E_$/ = $1.25. If we assume LOOP and PPP to hold, is the dollar under or overvalued? If so, by how much? (Hint: use the Amazon USA dollar price as the base for the valuation calculation. For the calculation, report a percentage to one decimal place.)