How the figure is worked out
Four inputs, and urgency is not one of them. Volume — measured, not counted in bedrooms. Access at both ends, which in this county means the staircase and the lane as much as the parking. Packing depth. And whether anything is being held between dates.
That also makes quotes comparable. If you are comparing quotes, the first check is whether both firms measured the same volume and assumed the same amount of packing. A cheaper quote that expects you to pack the kitchen is not cheaper.
There are no prices anywhere on this site and no transit times on the overseas pages, because neither is knowable before a survey. Start on the quote form, or read the questions page.