percent of...作主语时, of后如为不可数名词,谓语动词用单数形式; 如为可数名词复数形式,则谓语动词用复数形式。
例句：
The number of queues repaired out of the percent detected.
修复的队列数目超过检测到的百分比。
Twenty percent of the products are exported.
百分之二十的.产品外销。
The company's market share is 48 percent in the marketplace.
这家公司的市场占有率是百分之四十八。