public void PercentageChangeIncreaseTest()
{
var bTransactionEntry = new TransactionEntry()
{
Saldo = 50,
Date = new DateTime(2018, 01, 01).ToString("o")
};
var eTransactionEntry = new TransactionEntry()
{
Saldo = 100,
Date = new DateTime(2018, 01, 02).ToString("o")
};
var change = OperationsService.PercentageIncrease(bTransactionEntry, eTransactionEntry);
Assert.IsTrue(Math.Abs(change.AbsoluteIncrease - 50) < 0);
Assert.IsTrue(Math.Abs(change.PercentageIncrease - 100) < 0);
}