-1.26% is the change from 317 to 313
Calculation steps:
[( 313 - 317 ) ÷ 317] x 100 = -1.26%
Formula
Percentage change = [(313 - 317) / 317] x 100
Subtract the new number by the original number
313 - 317 = -4
-4 ÷ 317 = -0.012618296529968454
-0.012618296529968454 x 100 = -1.26%