27. 2018/19 年度业务费用拟议资源为 468 836 300 美元，与 2017/18 年度批款相比增加 20 391 000 美元，增幅为 4.5%。拟议增加经费的主要原因是由于以下原因增加了通信和信息技术项下所需经费(37 941 100 美元，即 82.5%)：通信和信息技术设备维护和支助服务费用增加；增加购置信息技术设备；软件许可证和费用开支增加；公共信息和出版服务开支增加。所需资源增加额被部分抵消，原因是空中业务项下所需经费减少(17 888 900 美元，即 9.7%)、设施和基础设施项下所需经费减少(7 045 900 美元，即 6.8%)(见 A/72/746，第 137、140 和 142 段)。
27. The proposed resources for operational costs for 2018/19 amount to $468,836,300, representing an increase of $20,391,000, or 4.5 per cent, compared with the appropriation for 2017/18. The proposed increase is attributable mainly to increased requirements under communications and information technology ($37,941,100, or 82.5 per cent), owing to the increased costs for the maintenance of communications and information technology equipment and support services; increased acquisition of information technology equipment; increased costs of software licences and fees; and public information and publication services. The increased requirements are offset in part by decreased requirements under air operations ($17,888,900, or 9.7 per cent) and under facilities and infrastructure ($7,045,900, or 6.8 per cent) (see A/72/746, paras. 137, 140 and 142).