12150% is the change from 8 to 980
Calculation steps:
[( 980 - 8 ) ÷ 8] x 100 = 12150%
Formula
Percentage change = [(980 - 8) / 8] x 100
Subtract the new number by the original number
980 - 8 = 972
972 ÷ 8 = 121.5
121.5 x 100 = 12150%
Example