Natural log problem divide by zero problem for stock/fx contributions The Stock Price move from 100 (p_1) to 150 (p_2) and the FX rate moves from 1.2 (c_1) to 0.8 (c_2). therefore the base currency value stays the same. I am looking for the fx vs stock contribution over the day using the natural log. Usually I can use the following formula, but in the above case I get a divide by zero error. stock contribution: (p_2c_2 - p_1c_1)/(1 + (ln(p_2/p_1))/( ln(c_2/c_1))

$\frac{20b}{{\left(4b^3\right)}^3}$

Which operation could we perform in order to find the number of milliseconds in a year??
${\displaystyle 60\cdot 60\cdot 24\cdot 7\cdot 365}$
${\displaystyle 1000\cdot 60\cdot 60\cdot 24\cdot 365}$
${\displaystyle 24\cdot 60\cdot 100\cdot 7\cdot 52}$
${\displaystyle 1000\cdot 60\cdot 24\cdot 7\cdot 52?}$

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B) 0
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149600000000 is equal to
A)$1.496\times <!--\; \times \; -->{10}^{11}$
B)$1.496\times <!--\; \times \; -->{10}^{10}$
C)$1.496\times <!--\; \times \; -->{10}^{12}$
D)$1.496\times <!--\; \times \; -->{10}^8$

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