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1 byte added ,  03:17, January 6, 2012
m
Fixed formula - hit save instead of preview last time
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:<math>\frac{% \Delta Q}{% \Delta P} = \frac{\frac{Q_{new}-Q_{old}}{Q_{old}}{\frac{P_{new}-P_{old}}{P_{old}}}</math>
+
:<math>\frac{% \Delta Q}{% \Delta P} = \frac{\frac{Q_{new}-Q_{old}}{Q_{old}}}{\frac{P_{new}-P_{old}}{P_{old}}}</math>
     
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