Canada defines a small business as one with fewer than 100 paid employees and a medium-sized business as one with at least 100 and fewer than 500 employees.  As of December 2012, there were 1,107,540 employer businesses in Canada, of which 1,087,803 were small. Small businesses make up 98.2 percent of employer businesses, medium-sized businesses make up 1.6 percent of employer businesses and large businesses make up 0.1 percent of employer businesses. In 2012, over 7.7 million employees, or 69.7 percent of the total private labour force, worked for small businesses and 2.2 million employees, or 20.2 percent of the labour force, worked for medium-sized businesses. In total, SMEs employed about 10 million individuals, or 89.9 percent of employees. Canadian high-growth firms are present in every economic sector and are not just concentrated in knowledge-based industries. In terms of employment, the highest concentrations of high-growth firms in Canada during the 2006-2009 period were in construction (4.9 percent of all firms); business, building and other support services (4.6 percent); and professional, scientific and technical services (4.5 percent). In 2011, only 10.4 percent of SMEs exported. Nonetheless, they were responsible for $150 billion, or about 41.0 percent, of Canadas total value of exports.
Question: How many more employees can a medium business have over a small business before being considered a large business?
Answer: Canada defines a small business as one with  fewer than 100 paid employees and a medium-sized business as one with at least 100 and fewer than 500 employees. As of December 2012, there were 1,107,540 employer businesses in Canada, of which 1,087,803 were small. Small businesses make up 98.2 percent of employer businesses, medium-sized businesses make up 1.6 percent of employer businesses and large businesses make up 0.1 percent of employer businesses. In 2012, over 7.7 million employees, or 69.7 percent of the total private labour force, worked for small businesses and 2.2 million employees, or 20.2 percent of the labour force, worked for medium-sized businesses. In total, SMEs employed about 10 million individuals, or 89.9 percent of employees; 400