500=40%, 125 is 0/4 of 65438+500, so the quota of this station is 10%, and similarly 2% is 25, because the total * * * is 100%, so the others are1.

To be more specific, one by one, for example, the method of water and electricity is: you see that the amount of money per yuan of food is proportional to water and electricity. If the percentage of water and electricity is X, then 500 to 65438+Y=25 equals 40% to X, and X= 10% can be obtained. Similarly, the amount of money for books and newspapers is Y, 40%: 2.