Classify each of the following key performance indicators according to the balanced score card perspective it addresses. Choose from financial perspective, customer perspective, internal business perspective, or learning and growth perspective.
a. Variable cost per unit
b. Percentage of market share
c. Number of hours of employee training
d. Number of new products developed
e. Yield rate (number of units produced per hour)
f. Average repair time
g. Employee satisfaction
h. Number of repeat customers