Hi,

Am Fri, 5 Aug 2011 01:40:13 -0700 (PDT) schrieb rhhince:

Someone gives me 9900 dollars. Included in the 9900 is 5% is a goods
and services tax. What equation does one use to determine what isn't
tax? If I said that 9900 x 95% = 9405, that would be correct. However,
if I took that same number 9405 and multiplied it by 1.05 to reflect
the 5% tax, I get 9875.25 and not 9900.

your 9900 dollars are 105%.

9900/105*100 = 9428.57


Regards
Claus Busch
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Win XP PRof SP2 / Vista Ultimate SP2
Office 2003 SP2 /2007 Ultimate SP2