The amount shown on the booking
The amount is fixed the moment you book, at the price the listing showed then, and it does not change afterwards. A host who raises their rate does not make bookings already placed more expensive.
The booking stores the rate, the unit chosen — hour, day, week or month — and the number of units. The amount is the rate times the number of units, in shekels.
For a renewing storage subscription the price per month is shown, and each month is charged separately. For every other rental the amount covers the whole period you chose, and you pay it when you book.
The amount charged is the amount stored on the booking, and the booking shows its own payment state — pending, paid, or refunded.