Answer: The percent change in attendance was 20%.
Step-by-step explanation:
Given: The attendance at a seminar in year 1 = 500
In Year 2, the attendance changed by = 100
Therefore, change in the attendance= 100
The percent change in the attendance is given by :-
[tex]P=\frac{\text{change}}{\text{Attendance in previous year}}\times100\\\\\Rightarrow\ P=\frac{100}{500}\times100\\\\\Rightarrow\ P=\frac{1}{5}\times100\\\\\Rightarrow\ P=20\%[/tex]
Therefore, the percent change in attendance was 20%.
