-97.99% is the change from 348 to 7
Calculation steps:
[( 7 - 348 ) ÷ 348] x 100 = -97.99%
Formula
Percentage change = [(7 - 348) / 348] x 100
Subtract the new number by the original number
7 - 348 = -341
-341 ÷ 348 = -0.9798850574712644
-0.9798850574712644 x 100 = -97.99%