Part a: There is an 11% decrease in the price
Part b: There is an 8% decrease in the price
Part c: There is an 8% increase in the price
Part d: There is an 11% increase in the price
Part a:
Original price = $63
New price = $56.07
Change in price = 56.07-63 = - 6.93
Percentage change in price = Change in price/Original price*100
= -6.93/63*100
= - 0.11*100 = 11% decrease in price
Part b:
Original price = $37.50
New price = $34.50
Change in price = 34.5-37.5 = - 3
Percentage change in price = Change in price/Original price*100
= -3/37.5*100
= - 0.08*100 = 8% decrease in price
Part c:
Original price = $12.25
New price = $13.23
Change in price = 13.23-12.25 = 0.98
Percentage change in price = Change in price/Original price*100
= 0.98/12.25*100
= 0.08*100 = 8% increase in price
Part d:
Original price = $98
New price = $108.78
Change in price = 108.78-98 = 10.78
Percentage change in price = Change in price/Original price*100
= 10.78/98*100
= 0.11*100 = 11% increase in price
Learn more about percentage change:
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