Solve the Problem $81.3 \%$ B) $77 \%$ C) $23 \%$ D) $18.7 \%$

Multiple Choice

Solve the problem.
-Sales of frozen pizza for a club fund-raiser increased from 500 one year to 615 the next year. What was the percent of increase?

A) $81.3 \%$
B) $77 \%$
C) $23 \%$
D) $18.7 \%$