The value of r is a decrease of 3.0% of CBR.
The equation provided is:
r = (CBR + IMA) - (CDR + EM)
Given:
IMA = 1.0%
CDR = 1.0%
EM = 2.0%
Substituting the values, we have:
r = (CBR + 1.0%) - (1.0% + 2.0%)CBR
Simplifying, we get:
r = CBR - 3.0%CBR
Combining like terms, we can rewrite the equation as:
r = (1 - 3.0%)CBR
Since 1 - 3.0% = 0.97, the final equation is:
r = 0.97CBR
Therefore, the value of r is a decrease of 3.0% of CBR.