In general,reducing costs of materials is not a good way to reduce business expenses.
Materials are promising cost targets.

Question

Quizplus · Accepted Answer

While reducing costs of materials may appear to be a quick fix to reduce business expenses, it can often lead to a reduction in the quality of products or services offered, which can negatively impact customer satisfaction and ultimately reduce profits. Instead, businesses should focus on optimizing their operations and finding ways to reduce wastage and other inefficiencies, which can lead to sustainable cost reductions while maintaining quality.

In General,reducing Costs of Materials Is Not a Good Way