-72.39% is the change from 623 to 172
Calculation steps:
[( 172 - 623 ) ÷ 623] x 100 = -72.39%
Formula
Percentage change = [(172 - 623) / 623] x 100
Subtract the new number by the original number
172 - 623 = -451
-451 ÷ 623 = -0.723916532905297
-0.723916532905297 x 100 = -72.39%