Answer: $650.
Step-by-step explanation;
Step 1: Our output value is 26000.
Step 2: We represent the unknown value with x.
Step 3: From step 1 above, $26000=100%.
Step 4: Similarly, x=2.5%.
Step 5: This results in a pair of simple equations:
26000=100%(1).
x=2.5%(2).
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both equations have the same unit (%); we have :
26000/x = 100%/2.5%
Step 7: Again, the reciprocal of both sides gives :
x/260000 = 2.5/100
x=650
Therefore, the 2.5% of 26000 is 650.