I cannot rephrase. In lieu of the word "percent," could the percent symbol work in the two sentences below? Also, I don't think hyphens are needed for the phrasal adjectives, because the context is clear without them. And stylistically, I don't think the % sign needs to be used after 10 in the second example below. OK to the two examples below with the % sign and no hyphens? He said, "We expect a 10% a year increase in funding." Mr. Mulrooney said, "The figures represented a 10-15% a year increase in funding." Thank you.