What is 66% of $1,678.89 plus 7.5% tax?

50% of 1,678.89 = 839.445

10% = 167.889

5% = 83.9445

1% = 16.7889

.5% = 8.39445

Therefore 66% = 1108.0674

and 7.5% = 125.91675

So the two added together is: 1233.98415

To get the percentages simply do the following

50% = divide by two

10% = divide 50% by five OR divide the original number by 10

5% = divide 10% by two or divide 50% by 10

1% = divide 5% by 5 or divide original by 100

.5% = divide 1% by two