To calculate the job performance of a jumbo electrohydraulic knowing the 9 main variables to determine the duty cycle, these are: (1) number of holes to be drilled, (2) strike length, (3) drilling speed, (4 ) Jumbo amount of arms, (5) operator experience, (6) while maneuvering to change drill (7) useful life or change each bit, (8) time to change drill maneuvers, (9) transfer time, breakdowns or other. The application performs the calculations and returns the following results: (a) net drilling time, (b) time of maneuvers to change drills, (c) maneuvers for time changing bits, (d) time to breakdowns, transfers or other, (e) additional time for lack of skill of the operator, (f) Total drilling time in minutes and (g) Total drilling time in hours.