懂英语和数学的来!求算式!1) Mr.Cheng sold a van for $212500 and made a loss of $37500.Find the percentage loss.2) A shop owner sold a book for $599 and made a profit of $99.Find the percentage profit.
问题描述：
懂英语和数学的来!求算式!
1) Mr.Cheng sold a van for $212500 and made a loss of $37500.Find the percentage loss.
2) A shop owner sold a book for $599 and made a profit of $99.Find the percentage profit.
答
（1）37500/（37500+212500）
（2）99/599