-29.86% is the change from 623 to 437
Calculation steps:
[( 437 - 623 ) ÷ 623] x 100 = -29.86%
Formula
Percentage change = [(437 - 623) / 623] x 100
Subtract the new number by the original number
437 - 623 = -186
-186 ÷ 623 = -0.2985553772070626
-0.2985553772070626 x 100 = -29.86%