8050% is the change from 12 to 978
Calculation steps:
[( 978 - 12 ) ÷ 12] x 100 = 8050%
Formula
Percentage change = [(978 - 12) / 12] x 100
Subtract the new number by the original number
978 - 12 = 966
966 ÷ 12 = 80.5
80.5 x 100 = 8050%
Example