Answer:
The percent of change is 44.7%
Explanation:
Given that:
38 staples to 55 staples
As the number of staples are increased, therefore, the percent will also increase.
Difference = 55 - 38 = 17 staples
Percent of change =

Percent of change =

Percent of change = 0.447*100
Percent of change = 44.7%
Hence,
The percent of change is 44.7%