-64.4% is the change from 486 to 173
Calculation steps:
[( 173 - 486 ) ÷ 486] x 100 = -64.4%
Formula
Percentage change = [(173 - 486) / 486] x 100
Subtract the new number by the original number
173 - 486 = -313
-313 ÷ 486 = -0.6440329218106996
-0.6440329218106996 x 100 = -64.4%