-88.66% is the change from 344 to 39
Calculation steps:
[( 39 - 344 ) ÷ 344] x 100 = -88.66%
Formula
Percentage change = [(39 - 344) / 344] x 100
Subtract the new number by the original number
39 - 344 = -305
-305 ÷ 344 = -0.8866279069767442
-0.8866279069767442 x 100 = -88.66%