Original shirt cost: $55. current shirt cost $40 find the percent decrease round to the nearest whole percent

Step-by-step explanation:

Original cost  = $55

Current price = $40

Decrease in price = 40-55 = -$15

Percentage decrease =  [(New price - old price)/ old price] *100

Percentage decrease = (40-55)/55] *100

                                  = -0.272727 *100

                                 = -27.27%

To a whole percentage = 27%

Therefore, the cost of the t-shirt decreased by 27%