-64.51% is the change from 479 to 170
Calculation steps:
[( 170 - 479 ) ÷ 479] x 100 = -64.51%
Formula
Percentage change = [(170 - 479) / 479] x 100
Subtract the new number by the original number
170 - 479 = -309
-309 ÷ 479 = -0.6450939457202505
-0.6450939457202505 x 100 = -64.51%