求助数学题（急）

mary1

What's the percent of the amount increased from 1992 to 1993? (amount of 1992 is 100, amount of 1994 is 200) 答案是100％
What's the percent of the amount that number 10 exceeds number 5? 答案是100％
这种题怎么样判断是指哪一个数的Percent？这种题目一共有多少题型？谢谢！！fficeffice" />

ppp1

(200-100)/100=100%
(10-5)/5=100%fficeffice" />