求助SC

弥敦道

according to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs tht were advertised most heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming from sales of the 9850 prescription medicines that companies did not advertise or advertised very little.这是一道SC题，这是正确的句子，我想请问这里的coming是什么用法呀？是做伴随状语吗？而且我总觉得根据语义这前面加一个while会好一点请求帮助

5Day

独立主格，做伴随状语

弥敦道

5Day 发表于 2020-3-24 00:22
独立主格，做伴随状语

明白了，谢谢！