As operations manager, you are concerned about being able to meet sales requirements in the coming months. You have just been given the following production report: JAN FEB MAR APR Units produced 2,130 1,630 2,630 2,830 Hours per machine 301 181 376 302 Number of machines 4 6 5 4 Find the average of the monthly productivity figures (units per machine hour). (Do not round intermediate calculations. Round your answer to 2 decimal places.) Average productivity units per machine hour