 As these regions were completely dependent on paper money inflation hit them more severely as their notes could not be converted into a currency based on any intrinsic value, for this reason the Mongols allowed their subjects to continue using copper-alloy cash coins and issued new ones every now and then.During the last few decades of the Yuan dynasty the inflation caused people to lose their trust in paper money and barter became the most common means of exchange.During the beginning of Manchu rule over China in the year 1644, the total imperial revenues of the Qing dynasty were an approximated 30,000,000 taels.