-72.73% is the change from 319 to 87
Calculation steps:
[( 87 - 319 ) ÷ 319] x 100 = -72.73%
Formula
Percentage change = [(87 - 319) / 319] x 100
Subtract the new number by the original number
87 - 319 = -232
-232 ÷ 319 = -0.7272727272727273
-0.7272727272727273 x 100 = -72.73%