-75% is the change from 648 to 162
Calculation steps:
[( 162 - 648 ) ÷ 648] x 100 = -75%
Formula
Percentage change = [(162 - 648) / 648] x 100
Subtract the new number by the original number
162 - 648 = -486
-486 ÷ 648 = -0.75
-0.75 x 100 = -75%
Example