-57.23% is the change from 339 to 145
Calculation steps:
[( 145 - 339 ) ÷ 339] x 100 = -57.23%
Formula
Percentage change = [(145 - 339) / 339] x 100
Subtract the new number by the original number
145 - 339 = -194
-194 ÷ 339 = -0.5722713864306784
-0.5722713864306784 x 100 = -57.23%