An article is bought for Rs.823 and sold for Rs.1000, find the gain percent?  Choices:
A) 21.4%
B) 21.5%
C) 21.6%
D) 21.7%
E) 21.8%
823 ---- 177   100 ---- ? =&gt; 21.5%   Answer:21.5%
<result>B</result>
An article is bought for Rs.823 and sold for Rs.1000, find the gain percent?