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Answer:
Step-by-step explanation:
Increase
Increase = [tex]\dfrac{4}{5}-\dfrac{2}{5}=\dfrac{2}{5}[/tex]
Increase percentage = 2/5 out of 2/5 * 100
[tex]=\dfrac{2}{5}*\dfrac{5}{2}*100[/tex]
= 100 %