An item with an original price of d dollars has its price increased by x percent in april and then decreased by x percent in may. the resulting price is 4 percent less than the original price. what is the value of x?

Griffin ordered a pair of sneakers online. he had a $22 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. if the shoes cost $58, how much did griffin charge to his credit card when he bought the sneakers?