-84.57% is the change from 486 to 75
Calculation steps:
[( 75 - 486 ) ÷ 486] x 100 = -84.57%
Formula
Percentage change = [(75 - 486) / 486] x 100
Subtract the new number by the original number
75 - 486 = -411
-411 ÷ 486 = -0.845679012345679
-0.845679012345679 x 100 = -84.57%