We began the first fiscal year of the previous mid-term plan with an economic recovery from the pandemic and the global supply chain disruption caused by the situation in Ukraine. We also saw significant increases in materials and logistics costs. Komatsu began raising selling prices to counter rising material prices, and, by late fiscal 2022, the increase in selling prices had come to surpass increases in production costs and fixed costs. For the first time since fiscal 2021, selling prices in the fourth quarter of fiscal 2023 exceeded the increase in cost of sales and fixed costs in terms of cumulative income (Figure 3).
In fiscal 2023, we began visualizing consolidated profit and loss by region and destination, fostering comparability under identical conditions. This practice has incentivized group companies to improve selling prices further. In the past, we managed profit and loss with a focus on individual companies. This new approach overcomes the disadvantage of significant fluctuations in the profit of individual companies depending on intra-group transfer pricing. In fiscal 2024, we linked the compensation of the top management of group companies to the consolidated performance of each region, further ensuring improvement in selling prices.
Komatsu regards the retail finance business as an important sales tool for construction and mining equipment. We have expanded our operations progressively in strategically important regions while leveraging our strength in Komtrax (equipment operation management system) to protect receivables. During the previous mid-term plan, we expanded coverage in Northern Europe, Africa, and other regions. As a result, we increased asset scope by 1.4 times over the past three years, while achieving management targets of ROA of between 1.5% and 2.0% and net D/E ratio of 5 times or less (Figure 12).
The retail finance business is more profitable than other segments. The net D/E ratio of this business is higher than that of the construction, mining and utility equipment business due to the nature of finance. The business improves ROE in two ways to create enhanced corporate value: By increasing net income ratio and by expanding financial leverage.
In addition, the retail finance business secures stable interest income over an average financing period of approximately four years. This factor provides the same impact as parts and services in that we equalize profits and achieve a profit structure that is more resilient to demand fluctuations.
To date, our focus in the retail finance business has been on soundness and a target net debt-to-equity ratio of less than 5 times. However, in light of our policy to expand the retail finance business further under SGP, as well as our accumulated knowledge and expertise in risk management, we raised the net D/E ratio
target to 6 times or less. We will continue to expand our retail finance business while monitoring operational soundness.