[SamAdams76]

And you need to brush up on your math...

51 down to 46 is more than a 10% drop:

((y2 - y1) / y1) * 100 = your percentage of change.

((51-46) / 46) * 100 = your percentage of change
((5) / 46) * 100 = your percentage of change
(.109) * 100 = your percentage of change
10.9% = your percentage of change

Therefore dropping from 51% to 46% equals a drop of 10.9%.

[Signalman]

Therefore dropping from 51% to 46% equals a drop of 10.9%.

I'm getting a percentage drop of 9.8039.

All you have to do is divide 51 by 5.

[matthew fuller]

You’re more correct than Kaslin, however I think that you’re off a little also- the percentage of change must be measured against the original value- as in 51-46=5. 5/51=9.8%. In other words, if you have $100, and lose $20, then you’re down 20%- 20/100=0.20.