The fox bought a 75-yuan fur coat from the old goat’s store with 100 yuan of counterfeit bills, and the old goat also gave the fox 25 yuan in change, so how much did the old goat actually lose?
狐狸用100元的假钞买走了老山羊店里一件75元的皮衣，老山羊还找给狐狸25元钱，那么老山羊实际损失了多少元钱．
<gadget id="calculator">75 + 25</gadget>
<output>100</output>

<result>100</result>