Answer: The correct answer is: " 5% increase " .
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Step-by-step explanation:
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Note: The particular "percentage change" is a "percent increase" ; since we are going from "20" to "21" which is an "increased value of "1" .
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Note the formula for "percent increase" ; as follows:
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Percent increase = [(new value - original value)/original value] * 100 ;
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So; let us "plug in" our known values; to solve for the "percentage change"
→ [i.e. "percent increase" (in this case)] :
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Percent increase = [(21 - 20)/20] * 100 ;
= [1/20] * 100 ;
= [100/20] ;
= 5.
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The correct answer is: " 5 % increase" .
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Hope this helps!
Best wishes to you!
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