-42.74% is the change from 620 to 355
Calculation steps:
[( 355 - 620 ) ÷ 620] x 100 = -42.74%
Formula
Percentage change = [(355 - 620) / 620] x 100
Subtract the new number by the original number
355 - 620 = -265
-265 ÷ 620 = -0.4274193548387097
-0.4274193548387097 x 100 = -42.74%