-29.37% is the change from 623 to 440
Calculation steps:
[( 440 - 623 ) ÷ 623] x 100 = -29.37%
Formula
Percentage change = [(440 - 623) / 623] x 100
Subtract the new number by the original number
440 - 623 = -183
-183 ÷ 623 = -0.29373996789727125
-0.29373996789727125 x 100 = -29.37%