Question

The price of a cup of coffee was $2.45 yesterday. Today, the price fell to $2.30. Find the percentage decrease. Round your answer to the nearest tenth of a percent

Answer 1

Based on given conditions, formulate,

$\frac{(2.45 - 2.3)}{2.45}$

$= > \frac{0.15}{2.45}$

Now multiply both numerator and denominator by 100 to make it positive,

$= > \frac{0.15 \times 100}{2.45 \times 100}$

$= > \frac{15}{245}$

Now cross put the common factor,

$= > \frac{3}{49}$

Now round the number to rhe required place,

$= > \frac{3}{49}$

$= > 0.1$