Question

if the sales price is $78.26 after 25% off what was the original price

Answer 1

Take the $78.26 and multiply that by 2, and then ADD another $78.26 to it and that will be the Original Price of whatever the item is.

Answer 2

x is the original price
x(.75) = 78.26
x= 78.26/.75
or
x-(x*.25) = 78.26
x-.25x = 78.26 --on the left, original price minus 25% (.25*x is the calculation for deducting 25%)
x(1-.25) = 78.26
.75x = 78.26
x = 78.26 /.75

original price = 104.35