تیتر اصلی

				
					def calculate_roi(organization_size, years=3):
    # هزینه‌های SharePoint On-Premise
    capex = {
        'servers': 50000,
        'licenses': 40000,
        'setup': 20000
    }
    opex = {
        'maintenance': 30000 * years,
        'it_staff': 80000 * years,
        'upgrades': 15000 * years
    }
    
    # هزینه‌های Microsoft 365
    subscription = organization_size * 72 * 12 * years  # 6$/user/month
    
    # مزایا
    benefits = {
        'productivity_gain': 0.25,  # 25% افزایش بهره‌وری
        'time_saving': 5 * organization_size * 50 * years,  # 5 ساعت/هفته/کارمند
        'reduced_it_costs': opex['it_staff'] * 0.6,
        'security_benefits': 50000 * years
    }
    
    total_benefits = sum(benefits.values())
    on_premise_cost = sum(capex.values()) + sum(opex.values())
    cloud_cost = subscription
    
    roi_on_premise = (total_benefits - on_premise_cost) / on_premise_cost
    roi_cloud = (total_benefits - cloud_cost) / cloud_cost
    
    return {
        'sharepoint_on_premise_roi': f"{roi_on_premise:.1%}",
        'microsoft365_roi': f"{roi_cloud:.1%}",
        'recommendation': 'Microsoft 365' if roi_cloud > roi_on_premise else 'SharePoint On-Premise'
    }

# نتیجه: Microsoft 365 معمولاً ROI 40-60% بهتری دارد