12275% is the change from 8 to 990
Calculation steps:
[( 990 - 8 ) ÷ 8] x 100 = 12275%
Formula
Percentage change = [(990 - 8) / 8] x 100
Subtract the new number by the original number
990 - 8 = 982
982 ÷ 8 = 122.75
122.75 x 100 = 12275%
Example