-79.88% is the change from 343 to 69
Calculation steps:
[( 69 - 343 ) ÷ 343] x 100 = -79.88%
Formula
Percentage change = [(69 - 343) / 343] x 100
Subtract the new number by the original number
69 - 343 = -274
-274 ÷ 343 = -0.7988338192419825
-0.7988338192419825 x 100 = -79.88%