Calvin earned $40,500 last year. He paid $12,555 for rent. What percent of us earnings did Calvin pay for rent?

Answer: 31%

Step-by-step explanation:

% he paid for rent = amount paid for rent / amount earned x 100

That is

% paid for rent = 12,555/40,500 x 100

% paid for rent = 0.31 x 100

% paid for rent = 31