-82.13% is the change from 319 to 57
Calculation steps:
[( 57 - 319 ) ÷ 319] x 100 = -82.13%
Formula
Percentage change = [(57 - 319) / 319] x 100
Subtract the new number by the original number
57 - 319 = -262
-262 ÷ 319 = -0.8213166144200627
-0.8213166144200627 x 100 = -82.13%