Therese operates an accounting practice andis alsoemployed part- timeasalectureratcollege.Sheuseshercarforbothherbusinessandto travel to college. Durinp the year, Therese maintained a valid logbookfor12consecutive weeks whichdisclosedthefollowing:

• Travelfrom hometooffice 2,135km
• Travelfromhometocollegeforlecturing 1,045km
• Traveltocityforaccountingconferencesfromoffice 620km
• Privateweekendtravel 1,180 km
• Traveltoclientsforbusiness 1,860km
• Travelfromofficetocollegeforlecturing 580km
• Travelfromcollegetohome 1,410km

Calculate the business use percentage according to Therese's logbook.