Number of people that went to the skating rink last week = 420 Number of people that went to the skating rink this week = 294 Then Decrease in the number of people going to the skating rink this week = 420 - 294 = 126 Percentage decrease in the number of people going to the skating rink this week = (126/420) * 100 = 1260/42 = 30 percent So there is 30% decrease in the percentage of people going to the skating rink this week.