Look up per diem reimbursement rates and mileage deductions for business travel worldwide.

Complete
United Kingdom → Banjul, GM
Item Name Destination Amount Conditions
Meals Banjul, Gambia 531.5 GMD per day Over 5 hours rate: covers subsistence expenses for a period of more than 5 but less than 10 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals Banjul, Gambia 1485.5 GMD per day Over 10 hours rate: covers subsistence expenses for a period of more than 10 but less than 24 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals and incidentals Banjul, Gambia 1860.5 GMD per day 24 hour rate: covers the total cost of meals and daily hotel-to-office travel for a full 24-hour period.; The actual room rate is paid in addition to this amount (source shows the rate as 'plus room rate').
Lodging Banjul, Gambia 90 EUR per night No specific conditions
Breakfast Banjul, Gambia 0 GMD per meal This amount is included in the room rate, so it is not paid separately on top of the lodging rate.
Lunch Banjul, Gambia 480.5 GMD per meal No specific conditions
Dinner Banjul, Gambia 903 GMD per meal No specific conditions
Incidentals Banjul, Gambia 102 GMD per day Source row labelled 'Other': other expenses incurred during the day; employers may use the individual meal and other rates instead of the over 5 hour, over 10 hour and 24 hour rates.
Drinks Banjul, Gambia 102 GMD per day No specific conditions
Transport Banjul, Gambia 273 GMD per day Covers daily travel between the employee's hotel and office.
Total residual Banjul, Gambia 1860.5 GMD per day Total residual rate: intended to cover the total cost of meals in a period of 24 hours plus the cost of daily travel between the employee’s hotel and office; the 24 hour rate is the sum of the room rate and this total residual rate.

Source URL:
https://www.gov.uk/guidance/expenses-rates-for-employees-travelling-outside-the-uk
This source provides official travel rate information from gov.uk.