How to calculate the tourism multiplier for the direct and comprehensive contribution of tourism to gdp

How to calculate the tourism multiplier with the direct and comprehensive contribution of tourism to gdp is as follows:

1. From the perspective of tourism industry structure, tourism shopping contributes the most to the added value, accounting for 33.73%. Followed by accommodation and catering, accounting for 26.73%, followed by tourism and transportation, accounting for 19.09%. Scenic spots and travel agencies account for 7.49% and 4.42% respectively.