Question

220 student enter a spelling bee after the first round 40 students were eliminated there will be 180 students competing in round 2 what is the percent change

Answer 1

Initial number of students: 220

Final number of students : 180

Multiply the initial number of students (220) by the percentage change in decimal form (divided by 100) - That expression must be equal to 180.

220 x = 180

Solve for x:

x=180/220

x= 0.818181

multiply by 100

81,81 %

100%-81,81% = 18.18%

Percent change: 18.18%