8100% is the change from 12 to 984
Calculation steps:
[( 984 - 12 ) ÷ 12] x 100 = 8100%
Formula
Percentage change = [(984 - 12) / 12] x 100
Subtract the new number by the original number
984 - 12 = 972
972 ÷ 12 = 81
81 x 100 = 8100%
Example