-26.97% is the change from 623 to 455
Calculation steps:
[( 455 - 623 ) ÷ 623] x 100 = -26.97%
Formula
Percentage change = [(455 - 623) / 623] x 100
Subtract the new number by the original number
455 - 623 = -168
-168 ÷ 623 = -0.2696629213483146
-0.2696629213483146 x 100 = -26.97%