The following four months of data were collected on utility cost and the number of labor hours in a factory.

Month

Utility cost

Labor hours

January $115,550 7,540

February 106,782 6,900

March 105,400 6,840

April 110,112 7,150

Using the high-low method, compute the variable rate for the utility cost. Note. Enter numbers only-- do not use a dollar sign ($) or comma.