If the unit selling price is $2.50 and the unit cost is $1, what action is needed to maintain the gross margin percentage when unit cost increases $0.25?

$2.50 / $1.00  =  2.5.

If the cost increases to $1.25 the selling price would increase to $1.25 x 2.5  = $3.125 before rounding

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value