$\begin{array}{l}\text{Here, }\\ \text{we can simplify it as}\\ \Rightarrow \text{(23.6\% of 1254)}-\text{(16.6\% of 834)}\\ \\ \text{=}(\frac{23.6}{100}\times 1254)-(\frac{16.6}{100}\times 834)\\ \\ \text{= (23.6}\times \text{12.54)}-\text{(16.6}\times \text{8.34)}\\ \\ \text{= 295.944}-\text{138.444=157.5}\end{array}$

Hence, Option B is correct.