The percent decrease is (the amount of decrease)/(original amount) the amount of decrease is $44-11=33$ so the percent decrease is $\frac{33}{44}$ which is about $(\mathbf{c}) 75 \textbackslash\%$ 
The average cost of a long-distance call in the USA in 1985 was 44 cents per minute, and the average cost of a long-distance call in the USA in 2005 was 11 cents per minute. Find the approximate percent decrease in the cost per minute of a long- distance call. (adapted from 2007 AMC 8, Question \#6) 
(A) $$25$$ 
(B) $$50$$ 
(C) $$75$$ 
(D) $$100$$ 
(E) $$125$$ 