If an article is sold at 18% profit instead of 9% profit…

If an article is sold at 18% profit instead of 9% profit, then the profit would be $54 more. What is the cost price?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #19239