A fair price shopkeeper takes 10% profit on his goods

A fair price shopkeeper takes 10% profit on his goods. He lost 50% goods during theft. His loss percent is:

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 #26815