a pharmaceutical company received $ 8 million in royalties on the first $ 20 million in sales of the generic equivalent of one of its products and then $ 9 million in royalties on the next $ 108 million in sales . by approximately what percent did the ratio of royalties to sales decrease from the first $ 20 million in sales to the next $ 108 million in sales ?
n0 = 8.0
n1 = 20.0
n2 = 9.0
n3 = 108.0
n4 = 20.0
n5 = 108.0
t0 = n0 / n1
t1 = n2 / n3
t2 = t0 * 100.0
t3 = t1 * 100.0
t4 = t2 - t3
t5 = t4 / t2
answer = t5 * 100.0
print(answer)