I NEED HELP WITH MY GRAPHIC DESIGN PRICING!

I’m a freelance graphic designer based in India, and I recently had a meeting with a Dubai-based events management and marketing company. They’re looking for a graphic designer on a monthly retainer basis . The workload isn’t clearly defined yet because their events and campaigns vary from month to month. From what I understand, the work would be a mix of digital and print design, with occasional urgent requests. They would provide the copy, images, brand guidelines, event details, and references. I’d mainly be working directly with one person from their team. They’re open to a flexible monthly arrangement based on workload , and they’ve asked me to share my monthly rate. For freelancers/designers who have worked with clients in Dubai/UAE or similar international clients: How much would you charge for this kind of monthly graphic design retainer? I’d really appreciate any advice on how you would structure and price something like this.