-39.03% is the change from 620 to 378
Calculation steps:
[( 378 - 620 ) ÷ 620] x 100 = -39.03%
Formula
Percentage change = [(378 - 620) / 620] x 100
Subtract the new number by the original number
378 - 620 = -242
-242 ÷ 620 = -0.3903225806451613
-0.3903225806451613 x 100 = -39.03%