Question 1153196

if something went up 450% & is now $100 what was the original price? 
<pre>He's <b>WRONG!!</b>
Increasing by 450% means that it INCREASED to 550% (5.5) of its original value.
With V as its original value, we get: {{{highlight_green(matrix(4,3, 5.5/1, "=", 100/V, 5.5V, "=", 100, V, "=", 100/5.5, V, "=", "$18.18"))}}}