The number of computers increased by 38.9%
Step-by-step explanation:
Number of computers at start of week = Old value = 18
Number of computers by end of week = New value = 25
Change = New value - Old value
Change = 25-18 = +7
The positive sign indicates the increase.
Increase percent = [tex]\frac{Change}{Old\ value}*100[/tex]
[tex]Increase\ percent=\frac{7}{18}*100\\\\Increase\ percent=\frac{700}{18}\\\\Increase\ percent= 38.88\%[/tex]
Rounding off to nearest tenth
Increase percent = 38.9%
The number of computers increased by 38.9%
Keywords: difference, percentage
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