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

Complete
United Kingdom → Northwestern, ZM
Item Name Destination Amount Conditions
Meals Lusaka, Zambia 144.5 ZMW 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 Lusaka, Zambia 321 ZMW 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 Lusaka, Zambia 384 ZMW 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 Lusaka, Zambia 927 ZMW per night No specific conditions
Breakfast Lusaka, Zambia 0 ZMW per meal This amount is included in the room rate, so it is not paid separately on top of the lodging rate.
Lunch Lusaka, Zambia 126.5 ZMW per meal No specific conditions
Dinner Lusaka, Zambia 159 ZMW per meal No specific conditions
Incidentals Lusaka, Zambia 18 ZMW 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 Lusaka, Zambia 35.5 ZMW per day No specific conditions
Transport Lusaka, Zambia 45 ZMW per day Covers daily travel between the employee's hotel and office.
Total residual Lusaka, Zambia 384 ZMW 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.