No doubt costs are critical to understand.
But I'll take the other side... a 20% cost means an 80% gross profit margin.
More than a few businesses would kill for that gross profit margin!
And if your trading business is not of the hobbyist-type, costs(expenses) are deductible tax-wise without thresholds.
By all means, do what you can to reduce costs. But if costs alone are the determinant as to whether you are net profitable or not, trading may not be the right vocation to pursue.
But I'll take the other side... a 20% cost means an 80% gross profit margin.
More than a few businesses would kill for that gross profit margin!
And if your trading business is not of the hobbyist-type, costs(expenses) are deductible tax-wise without thresholds.
By all means, do what you can to reduce costs. But if costs alone are the determinant as to whether you are net profitable or not, trading may not be the right vocation to pursue.