Chocolate Box Pricing and Weight Comparison

Let the price of the small box be $P_S$ and its weight be $W_S$. Then the price of the large box is $P_L = 2 P_S$. Let its weight be $W_L$.

Selling price per gram in small box $= \frac{P_S}{W_S}$. Selling price per gram in large box $= \frac{P_L}{W_L} = \frac{2 P_S}{W_L}$.

Given that $\frac{2 P_S}{W_L} = 0.88 \times \frac{P_S}{W_S}$: $\frac{2}{W_L} = \frac{0.88}{W_S} \implies \frac{W_L}{W_S} = \frac{2}{0.88} = \frac{200}{88} = \frac{25}{11} \approx 2.2727$

The percentage by which $W_L$ exceeds $W_S$ is: $\left(\frac{W_L - W_S}{W_S}\right) \times 100\% = (2.2727 - 1) \times 100\% = 127.27\%$ Nearest integer is $127$.