-84.53% is the change from 349 to 54
Calculation steps:
[( 54 - 349 ) ÷ 349] x 100 = -84.53%
Formula
Percentage change = [(54 - 349) / 349] x 100
Subtract the new number by the original number
54 - 349 = -295
-295 ÷ 349 = -0.8452722063037249
-0.8452722063037249 x 100 = -84.53%