50% more ata but definitely not 100% more, happened to me before, diko nagamit yung sasakyan and totally forgot about it, naalala ko lang mga 8-10 months na paso pala. My friend told me to wait it out instead para makamenos ng onti sa emmission testing, made sense nga naman kasi i would have had just a few months then renew na naman ulit. Pinarenew ko sya a month before its actual turn.