-97.97% is the change from 344 to 7
Calculation steps:
[( 7 - 344 ) ÷ 344] x 100 = -97.97%
Formula
Percentage change = [(7 - 344) / 344] x 100
Subtract the new number by the original number
7 - 344 = -337
-337 ÷ 344 = -0.9796511627906976
-0.9796511627906976 x 100 = -97.97%