-3.05% is the change from 623 to 604
Calculation steps:
[( 604 - 623 ) ÷ 623] x 100 = -3.05%
Formula
Percentage change = [(604 - 623) / 623] x 100
Subtract the new number by the original number
604 - 623 = -19
-19 ÷ 623 = -0.030497592295345103
-0.030497592295345103 x 100 = -3.05%