-20.77% is the change from 313 to 248
Calculation steps:
[( 248 - 313 ) ÷ 313] x 100 = -20.77%
Formula
Percentage change = [(248 - 313) / 313] x 100
Subtract the new number by the original number
248 - 313 = -65
-65 ÷ 313 = -0.20766773162939298
-0.20766773162939298 x 100 = -20.77%