80 - 16.00 (20% OFF) = ₹64.00

54.24 + 9.76 (18%) = 64.00

• 30 + @ 24% : 51.52 + 18% = 60.80
• 60 + @ 28% : 48.81 + 18% = 57.60
• 100 + @ 32% : 46.10 + 18% = 54.40