-72.1% is the change from 319 to 89
Calculation steps:
[( 89 - 319 ) ÷ 319] x 100 = -72.1%
Formula
Percentage change = [(89 - 319) / 319] x 100
Subtract the new number by the original number
89 - 319 = -230
-230 ÷ 319 = -0.7210031347962382
-0.7210031347962382 x 100 = -72.1%