The bar chart shows that in April 2021 to March 2022, the percentage change between the first and second estimates of monthly tax due has varied considerably, between around 0% to 9%.
Mae’r siart bar yn dangos, rhwng mis Ebrill 2021 a mis Mawrth 2022, fod y newid canrannol rhwng yr amcangyfrif cyntaf a’r ail amcangyfrif o dreth fisol wedi amrywio’n sylweddol, rhwng tua 0% a 9%.