Btw, the profitability index does take the /2 divisor into account, you can calculate it yourself

Good work merc! (L)
Been having the same question... But I don't really understand what you mean by your conclusion (my apologies for my comprehension problem).
Does it mean that Panda coin today can output 5x profit comare to LTC, or it only output 2.5x due to hash-rate difference?