-72.99% is the change from 311 to 84
Calculation steps:
[( 84 - 311 ) ÷ 311] x 100 = -72.99%
Formula
Percentage change = [(84 - 311) / 311] x 100
Subtract the new number by the original number
84 - 311 = -227
-227 ÷ 311 = -0.729903536977492
-0.729903536977492 x 100 = -72.99%