-61.64% is the change from 451 to 173
Calculation steps:
[( 173 - 451 ) ÷ 451] x 100 = -61.64%
Formula
Percentage change = [(173 - 451) / 451] x 100
Subtract the new number by the original number
173 - 451 = -278
-278 ÷ 451 = -0.6164079822616408
-0.6164079822616408 x 100 = -61.64%