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Answer :

Answer:

going from 4 tsp to 60 tsp is an increase of 50%

Step-by-step explanation:

[tex] \frac{new - old}{old} \times 100[/tex]

[tex] \frac{6 - 4}{4} \times 100 = \\ \frac{2}{4} \times 100 = \frac{1}{2} \times 100 = \frac{100}{2} = 50[/tex]