-83.39% is the change from 319 to 53
Calculation steps:
[( 53 - 319 ) ÷ 319] x 100 = -83.39%
Formula
Percentage change = [(53 - 319) / 319] x 100
Subtract the new number by the original number
53 - 319 = -266
-266 ÷ 319 = -0.8338557993730408
-0.8338557993730408 x 100 = -83.39%