It is determined that a sample has a true absorbance of 0.93 and 0.67 at two different wavelengths, 440 and 460 nm, respectively, as measured in an accurate spectrophotometer However, when the samcsamplc is analyzed ar:'ii{}hm using a faulty spectrophotometer that also unwantedly shines the 4_(_}__n11_1_ radiation on the sample during a measurement, the reading noted on the instrument was 0.83. Determine the amount of the unwanted 460 nm radiation in the faulty instrument as a percentage of the amount of 440 nm light incident on the sample. Assume the blank absorbance of the sample to be zero