Hello!
75,000 - 10% of 75,000
= 75,000 -(10*75,000)/100
= 75,000 -7,5 => 67,500
67,500 - 10% of 67,500
= 67,500- ( 10*67,500)/100
=67,500 - 6,75 = 60,750
60,750 -10% of 60,750
= 60,750-( 10*60,750)/100
= 60,750 - 6,075 => 54,675
