-86.78% is the change from 484 to 64
Calculation steps:
[( 64 - 484 ) ÷ 484] x 100 = -86.78%
Formula
Percentage change = [(64 - 484) / 484] x 100
Subtract the new number by the original number
64 - 484 = -420
-420 ÷ 484 = -0.8677685950413223
-0.8677685950413223 x 100 = -86.78%