-97.92% is the change from 336 to 7
Calculation steps:
[( 7 - 336 ) ÷ 336] x 100 = -97.92%
Formula
Percentage change = [(7 - 336) / 336] x 100
Subtract the new number by the original number
7 - 336 = -329
-329 ÷ 336 = -0.9791666666666666
-0.9791666666666666 x 100 = -97.92%