VAT calculation

Order https://hte.crm-onebox.com/admin/customorder/order/1488/edit/ Somehow strange VAT is considered, please help to suggest what we are doing wrong Added 2 products Let me explain how I thought: Price without VAT = Price with VAT 98919.74 / 1.2 = 82433.1166667, rounded up to 2 digits, we get 82433.12 Price without VAT = Price with VAT 11022.81 / 1.2 = 9185.675, rounded up to 2 digits, we get 9185.68 Cost without VAT = 82433.12 and 9185.68, because we have 1 piece of product Amount without VAT = 82433.12 + 9185.68 = 91618.8 VAT = 91618.8 * 0.2 = 18323.76 Amount with VAT = 91618.8 + 18323.76 = 109942.56 But in the order counted Amount with VAT 109942.55 instead of 109942.56 Amount without VAT 91618.79 instead of 91618.8 Tell me what we are doing wrong, how to set it up so that it counts as I described.