Question 14 4,5 pts Pattan Brothers, Inc, used the Nighlow method to derive its cost formula for electrical power costi According to the cost format, the variable cost per unit of activity is $2 per machine hour. Total electrical power cost at the Wich level of activity was $14,800 and at the low level of activity was $14,000. the high level of activity was 2,400 machine hours, then the low level of activity was 1.600 machine hours 2.400 machine hours 2.000 machine hours 2.200 machine lours 1.800 machine hours