Try another version of this question Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
In 2011, the IRS increased the deductible mileage cost to `83.9` cents from `55.3` cents. Find the percent increase.
Round to the nearest tenth of a percent.
%
Enter DNE for Does Not Exist, oo for Infinity 51.7