Raw answer: '38.3%\n'
Ideal answer: '28%'
Grading detail: {'reward': 0.0, 'method': 'percentage_exact', 'submitted_percentage': '38.3', 'ideal_percentage': '28'}
Grading detail (not written to reward.json): {'reward': 0.0, 'method': 'percentage_exact', 'submitted_percentage': '38.3', 'ideal_percentage': '28'}
