Answer:
net loss of $62,500
Step-by-step explanation:
Today Jasper converted $1,000,000 into 750,000€ ($1 = €0.75)
In three months from now, Jasper turned the 750,000€ into $937,500 ($1 = €0.80). ⇒ 750,000 / 0.80 = 937,500
The result of these transactions is a net loss = $937,500 - $1,000,000 = -$62,500.
The net loss happened because the euro depreciated against the US dollar, i.e. it lost value.