-62.82% is the change from 390 to 145
Calculation steps:
[( 145 - 390 ) ÷ 390] x 100 = -62.82%
Formula
Percentage change = [(145 - 390) / 390] x 100
Subtract the new number by the original number
145 - 390 = -245
-245 ÷ 390 = -0.6282051282051282
-0.6282051282051282 x 100 = -62.82%