package com.bookshop.dry;
import java.math.BigDecimal;
/** A different document, same single source of VAT knowledge -- they cannot disagree. */
public class SupplierInvoice {
public BigDecimal vatLine(BigDecimal netAmount) {
return Vat.vatOn(netAmount);
}
public BigDecimal grandTotal(BigDecimal netAmount) {
return Vat.withVat(netAmount);
}
}