what is the percentage increase from 54 to 58.59

Question

Jackie is shopping at Lighten Up, where she buys a new floor lamp on sale for 40% off the original price of $90. Including sales tax, she pays $58.59 for the floor lamp. At what rate, expressed as a percent, is Jackie charges sales tax on the floor lamp?

Answer

Answer 1

58.59/54=1.085=108.5%

so inkreez=+8.5%

Answer 2

92.165899585555