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Cost of Sales (Tables)
 12 Months Ended
Dec. 31, 2023
Analysis of income and expense [abstract]  
Summary of cost of sales
United States Dollar
Figures in millions unless otherwise stated
2023
2022
2021
Salaries and wages
(399.7)
(397.4)
(397.8)
Consumable stores
(400.8)
(397.4)
(319.6)
Utilities
(150.0)
(141.5)
(134.1)
Mine contractors
(715.9)
(658.0)
(628.2)
Other
(376.0)
(337.2)
(304.8)
Cost of sales before gold inventory change and amortisation
and depreciation
(2,042.4)
(1,931.5)
(1,784.5)
Gold inventory change1
90.7
168.1
122.8
Cost of sales before amortisation and depreciation
(1,951.7)
(1,763.4)
(1,661.7)
Amortisation and depreciation
(795.3)
(844.3)
(713.2)
Total cost of sales
(2,747.0)
(2,607.7)
(2,374.9)
1 Included in the gold inventory change for 2023 is a net realisable value adjustment to stockpiles of US$33.8 million (2022: US$nil and 2021: US$nil)
at Damang.