-51.52% is the change from 623 to 302
Calculation steps:
[( 302 - 623 ) ÷ 623] x 100 = -51.52%
Formula
Percentage change = [(302 - 623) / 623] x 100
Subtract the new number by the original number
302 - 623 = -321
-321 ÷ 623 = -0.5152487961476726
-0.5152487961476726 x 100 = -51.52%