-72.52% is the change from 313 to 86
Calculation steps:
[( 86 - 313 ) ÷ 313] x 100 = -72.52%
Formula
Percentage change = [(86 - 313) / 313] x 100
Subtract the new number by the original number
86 - 313 = -227
-227 ÷ 313 = -0.7252396166134185
-0.7252396166134185 x 100 = -72.52%