HELLLPPPPP
45 POINTS!!!!!!

Calculate the percent increase or decrease between the starting and ending quantities below. Round your answer to one decimal place. (There’s 5 questions to answer)

1- Start:3 end: 10
2- start:9 end:20
3-start:100 end: 85
4- start: 45 end:20
5-start: 30 end: 60