-21.02% is the change from 314 to 248
Calculation steps:
[( 248 - 314 ) ÷ 314] x 100 = -21.02%
Formula
Percentage change = [(248 - 314) / 314] x 100
Subtract the new number by the original number
248 - 314 = -66
-66 ÷ 314 = -0.21019108280254778
-0.21019108280254778 x 100 = -21.02%