-98.04% is the change from 306 to 6
Calculation steps:
[( 6 - 306 ) ÷ 306] x 100 = -98.04%
Formula
Percentage change = [(6 - 306) / 306] x 100
Subtract the new number by the original number
6 - 306 = -300
-300 ÷ 306 = -0.9803921568627451
-0.9803921568627451 x 100 = -98.04%