Every time you go to the gas station you're amazed by how much prices have increased. At this time last year the price was $3.20 per gallon and now the price is $4.25 per gallon. Which of the following spreadsheet formulas correctly calculates the percentage change? Multiple Choice = ((4.25 -3.20) / 3.20) * 100 = (3.20 -4.25 /3.20) 100 = 3.20 -4.25 / 4.25 100 O =(4.25 +3.20)/3.20) 100