-4.81% is the change from 312 to 297
Calculation steps:
[( 297 - 312 ) ÷ 312] x 100 = -4.81%
Formula
Percentage change = [(297 - 312) / 312] x 100
Subtract the new number by the original number
297 - 312 = -15
-15 ÷ 312 = -0.04807692307692308
-0.04807692307692308 x 100 = -4.81%