What is the percentage change of net total property and equipment from 2018 to 2019?
{"Property and equipmentat cost: -- Leasehold improvements": {"2019": 3575, "2018": 3825}, "Property and equipmentat cost: -- Equipment": {"2019": 3041, "2018": 2604}, "Property and equipmentat cost: -- Capitalized internal-use software development costs": {"2019": 1088, "2018": 916}, "Property and equipmentat cost: -- Furniture and fixtures": {"2019": 526, "2018": 425}, "Property and equipmentat cost: -- ": {"2019": 8230, "2018": 7770}, "Property and equipmentat cost: -- Less: accumulated depreciation and amortization": {"2019": -3999, "2018": -3105}, "Property and equipmentat cost: -- Total property and equipment, net": {"2019": 4231, "2018": 4665}}
net_total_property_and_equipment_2019 = df["Property and equipmentat cost: -- Total property and equipment, net"]["2019"]
net_total_property_and_equipment_2018 = df["Property and equipmentat cost: -- Total property and equipment, net"]["2018"]
answer = ( net_total_property_and_equipment_2019 - net_total_property_and_equipment_2018 ) / net_total_property_and_equipment_2018 * 100.0