Two branches of a company produce the same product. Both branches together produced 12,400 items per day. The manufacturing process at the lower producing branch was changed which resulted in a 25 % increase in production. The process at the other branch was not changed and the rate of production remained the same. The total production of both branches together is increased to 13,550 items per day. How many items per day were produced by each branch before the lower producing branch's process was changed?