-69.82% is the change from 623 to 188
Calculation steps:
[( 188 - 623 ) ÷ 623] x 100 = -69.82%
Formula
Percentage change = [(188 - 623) / 623] x 100
Subtract the new number by the original number
188 - 623 = -435
-435 ÷ 623 = -0.6982343499197432
-0.6982343499197432 x 100 = -69.82%