One person took a hundred yuan banknotes to the store to buy 25 yuan, the owner didn't have a change in the hand, and then took this 100 yuan banknotes to the small vendors of the next door changed 100 yuan change, and found the person 75 yuan. The man took 25 yuan in the east and 75 yuan of change. After a while, the small street vendor next door found the owner, and said that the owner of the store was transferred to the hundred yuan banknotes for counterfeit currency. The owner looks closely, it is really a counterfeit banknotes. The owner had to find a real 100 yuan banknote to small street vendors. Q: How much is the owner of the whole process?
