Question

What is...
b decreased by p%

Answer 1

b decreased by p%....

b - (p% * b)

Answer 2

Percentage is a number or ratio expressed as a fraction of 100. It is denoted using the sign, "%".

We need to find b decreased by p%

That is,

b-(p% of b)

b-(p/100)*b

b-pb/100

100b-pb/100

or, (100-p)b/100