-98.37% is the change from 306 to 5
Calculation steps:
[( 5 - 306 ) ÷ 306] x 100 = -98.37%
Formula
Percentage change = [(5 - 306) / 306] x 100
Subtract the new number by the original number
5 - 306 = -301
-301 ÷ 306 = -0.9836601307189542
-0.9836601307189542 x 100 = -98.37%