Taxpayers with an office in their home may deduct a percentage of their​ home-related expenses. This percentage is based on the ratio of the​ office's area to the area of the home. A taxpayer with a 2300​-square-foot home maintains a 20​-foot by 13​-foot office. If the yearly electricity bills for the home come to ​$4500​, how much of this is​ deductible?