-97.67% is the change from 343 to 8
Calculation steps:
[( 8 - 343 ) ÷ 343] x 100 = -97.67%
Formula
Percentage change = [(8 - 343) / 343] x 100
Subtract the new number by the original number
8 - 343 = -335
-335 ÷ 343 = -0.9766763848396501
-0.9766763848396501 x 100 = -97.67%