An accounting tutor for Krystyna, 12, who's falling behind

My younger sister, Krystyna, is 12 and in Grade 11. Krystyna loves school but accounting has been a struggle since the school was closed during the floods. The school-leaving exam is in December. We can't afford a private tutor, and the school's free sessions are full. We're looking for a volunteer who could spend one or two hours a week, in person in Derry or online, for about ten weeks. Krystyna is polite, hardworking and eager. We have a quiet space and a laptop for online sessions. I'll always be at home for in-person sessions. If you're a teacher, student or professional who feels comfortable in accounting, you could change the course of Krystyna's year. Please ask me anything in the questions section. I'll answer honestly and quickly.