If you pay 75 dollars, the price will fluctuate with the exchange rate.
If the price of one night or several consecutive nights reaches this figure, you can use the travel fund, otherwise you can't use it.
If you need some money to spend, you can discuss with the landlord and ask him to raise the price of the house a little, so that you can use the money.
What is the labor insurance fund? At what proportion will the refund be deducted?