You can make the model as complex or simple as needed.
You wouldn't have to plot it to 100%, although you could extrapolate.
Although Wikipedia mentions that the highest marginal tax rate has been 99.5% in the UK.
@NotThamesWater started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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You can make the model as complex or simple as needed.
You wouldn't have to plot it to 100%, although you could extrapolate.
Although Wikipedia mentions that the highest marginal tax rate has been 99.5% in the UK.