Answer:
33.33 %
Explanation:
given,
error last year = 63
error this year = 42
percent decrease in the error = ?
to find the percentage difference in the error formula used is
= [tex]\dfrac{difference}{original}\times 100[/tex]
= [tex]\dfrac{63-42}{63}\times 100[/tex]
= [tex]\dfrac{21}{63}\times 100[/tex]
= 33.33 %
Percentage decrease in the number of error is equal to 33.33%.
