Automated PCR Efficiency Calculation Macro

Develop a VBA macro in Excel that automatically calculates PCR amplification efficiency from qPCR standard curve data. The macro should: 1) Accept raw fluorescence and cycle threshold data, 2) Perform linear regression to determine slope and R² value, 3) Calculate efficiency percentage using the formula E = (10^(-1/slope) - 1) * 100%, 4) Generate a color-coded report highlighting efficiency ranges (acceptable: 90-110%), and 5) Create a dynamic scatter plot with regression line. Include error handling for insufficient data points and provide visual indicators for data quality.