This article discusses the importance of financial decision making in business and focuses on the functions of accounting and finance. It specifically examines the case of SKANSA PLC, a construction firm, and calculates key ratios to analyze its performance. The article highlights the decrease in return on capital employed and net profit margin for SKANSA PLC between 2018 and 2019, indicating a potential loss of competitive edge. It also emphasizes the importance of proper planning, budget allocation, and long-term goal setting in accounting and finance.