-96.79% is the change from 343 to 11
Calculation steps:
[( 11 - 343 ) ÷ 343] x 100 = -96.79%
Formula
Percentage change = [(11 - 343) / 343] x 100
Subtract the new number by the original number
11 - 343 = -332
-332 ÷ 343 = -0.967930029154519
-0.967930029154519 x 100 = -96.79%