-96.9% is the change from 355 to 11
Calculation steps:
[( 11 - 355 ) ÷ 355] x 100 = -96.9%
Formula
Percentage change = [(11 - 355) / 355] x 100
Subtract the new number by the original number
11 - 355 = -344
-344 ÷ 355 = -0.9690140845070423
-0.9690140845070423 x 100 = -96.9%