-97.75% is the change from 355 to 8
Calculation steps:
[( 8 - 355 ) ÷ 355] x 100 = -97.75%
Formula
Percentage change = [(8 - 355) / 355] x 100
Subtract the new number by the original number
8 - 355 = -347
-347 ÷ 355 = -0.9774647887323944
-0.9774647887323944 x 100 = -97.75%