-84.95% is the change from 319 to 48
Calculation steps:
[( 48 - 319 ) ÷ 319] x 100 = -84.95%
Formula
Percentage change = [(48 - 319) / 319] x 100
Subtract the new number by the original number
48 - 319 = -271
-271 ÷ 319 = -0.8495297805642633
-0.8495297805642633 x 100 = -84.95%