Final answer:
The formula to convert absorbance (A) to percent transmittance (%T) is %T = 10^-A * 100.
Step-by-step explanation:
The formula to convert absorbance (A) to percent transmittance (%T) is: %T = 10-A * 100. In this formula, A represents the absorbance value.
For example, if the absorbance value (A) is 1.0, we can calculate the percent transmittance (%T) as follows:
%T = 10-1.0 * 100 = 0.1 * 100 = 10%.