-23.23% is the change from 620 to 476
Calculation steps:
[( 476 - 620 ) ÷ 620] x 100 = -23.23%
Formula
Percentage change = [(476 - 620) / 620] x 100
Subtract the new number by the original number
476 - 620 = -144
-144 ÷ 620 = -0.23225806451612904
-0.23225806451612904 x 100 = -23.23%