-67.35% is the change from 490 to 160
Calculation steps:
[( 160 - 490 ) ÷ 490] x 100 = -67.35%
Formula
Percentage change = [(160 - 490) / 490] x 100
Subtract the new number by the original number
160 - 490 = -330
-330 ÷ 490 = -0.673469387755102
-0.673469387755102 x 100 = -67.35%