for example, use XBT as bitcoin trade unit and allow only $0.01 precission.
Road to victory (112.770 million BTC / 112.770 trillion XBT)...
M1 Parity point Country
----------------------- -------------- -----------------------------------------------------------
$90,240,000,000.00 $8,199.65 Indonesia
$96,680,000,000.00 $8,784.82 Malaysia
$100,900,000,000.00 $9,168.27 United Kingdom
$112,770,000,000.00 $10,000.00 BITCOINATION ******************* @ 1 XBT = 0.01 USD
$110,100,000,000.00 $10,004.23 Algeria
$114,000,000,000.00 $10,358.60 Czech Republic
$117,000,000,000.00 $10,631.19 Finland
$117,000,000,000.00 $10,631.19 South Africa
$118,500,000,000.00 $10,767.49 Ireland
$120,000,000,000.00 $10,903.79 Greece
$120,700,000,000.00 $10,967.39 Singapore
$134,200,000,000.00 $12,194.07 Denmark
$143,800,000,000.00 $13,066.37 Hong Kong
$149,400,000,000.00 $13,575.22 Norway
$152,800,000,000.00 $13,884.16 Poland
$158,300,000,000.00 $14,383.91 Brazil
$168,400,000,000.00 $15,301.65 Belgium
$175,700,000,000.00 $15,964.96 Venezuela
$180,700,000,000.00 $16,419.29 Mexico
$194,800,000,000.00 $17,700.48 Austria
$225,540,000,000.00 $20,000.00 BITCOINATION ******************* @ 1 XBT = 0.02 USD
$231,300,000,000.00 $21,017.05 Saudi Arabia
$243,000,000,000.00 $22,080.17 Sweden
$338,310,000,000.00 $30,000.00 BITCOINATION ******************* @ 1 XBT = 0.03 USD
$342,300,000,000.00 $31,103.05 India
$347,000,000,000.00 $31,530.12 Russia
$369,600,000,000.00 $33,583.67 Korea South
$375,800,000,000.00 $34,147.03 Netherlands
$412,300,000,000.00 $37,463.60 Taiwan
$451,080,000,000.00 $40,000.00 BITCOINATION ******************* @ 1 XBT = 0.04 USD
$484,400,000,000.00 $44,014.96 Switzerland
$544,000,000,000.00 $49,430.50 Australia
$563,850,000,000.00 $50,000.00 BITCOINATION ******************* @ 1 XBT = 0.05 USD
$676,620,000,000.00 $60,000.00 BITCOINATION ******************* @ 1 XBT = 0.06 USD
$702,300,000,000.00 $63,814.42 Canada
$789,390,000,000.00 $70,000.00 BITCOINATION ******************* @ 1 XBT = 0.07 USD
$775,200,000,000.00 $70,438.47 Spain
$902,160,000,000.00 $80,000.00 BITCOINATION ******************* @ 1 XBT = 0.08 USD
$928,500,000,000.00 $84,368.06 France
$1,014,930,000,000.00 $90,000.00 BITCOINATION ******************* @ 1 XBT = 0.09 USD
$1,127,700,000,000.00 $100,000.00 BITCOINATION ******************* @ 1 XBT = 0.10 USD
$1,137,000,000,000.00 $103,313.39 Italy
$1,853,000,000,000.00 $168,372.66 Germany
$1,917,090,000,000.00 $170,000.00 BITCOINATION ******************* @ 1 XBT = 0.17 USD
$2,318,000,000,000.00 $210,624.83 United States
$2,480,940,000,000.00 $220,000.00 BITCOINATION ******************* @ 1 XBT = 0.22 USD
$4,910,000,000,000.00 $446,146.65 China
$5,074,650,000,000.00 $450,000.00 BITCOINATION ******************* @ 1 XBT = 0.45 USD
$6,205,000,000,000.00 $563,816.69 European Union
$6,427,890,000,000.00 $570,000.00 BITCOINATION ******************* @ 1 XBT = 0.57 USD
$6,735,000,000,000.00 $611,975.08 Japan
$6,991,740,000,000.00 $620,000.00 BITCOINATION ******************* @ 1 XBT = 0.62 USD