-24.6% is the change from 313 to 236
Calculation steps:
[( 236 - 313 ) ÷ 313] x 100 = -24.6%
Formula
Percentage change = [(236 - 313) / 313] x 100
Subtract the new number by the original number
236 - 313 = -77
-77 ÷ 313 = -0.24600638977635783
-0.24600638977635783 x 100 = -24.6%