Prices Depreciated, And I Became The World’s Richest Person is a Manga/Manhwa/Manhua in english language, manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

I woke up to find the world had changed! Prices everywhere have decreased by a million times, yet my funds remain the same, making me wealthier than the world’s richest person! How should I spend all this money…