How do I work out the proportion increase? I want to understand how the person who constructed this info calculated that their was a 8.2 proportion increase from June 2015 to December 2015. Thankyou.

Jun-15 Jun-15 Dec-15 Dec-15 Bank Lending Jun-16 Jun-16 Dec-16 $ Billions Proportion % | $ Billions Proportion % Dec-16 Apr-17 $ Billions Proportion % Apr-17 Lending to Government 206.7 8.2 $ Billions Proportion % $ Billions Proportion % 220.9 8.4 Lending to Persons 244.4 8.9 1468.1 255.2 9.1 58 1521.8 253.8 57.8 1576.6 8. 9 Lending to Commercial 57.6 854.9 1626 33.8 57.8 890.6 1652.6 33.8 58.1 Total: ($ Billions) 917 2529.7 33.5 932 33.1 2633.3 936.2 32.9 2738 2813.2 2842.6