-7.14% is the change from 336 to 312
Calculation steps:
[( 312 - 336 ) ÷ 336] x 100 = -7.14%
Formula
Percentage change = [(312 - 336) / 336] x 100
Subtract the new number by the original number
312 - 336 = -24
-24 ÷ 336 = -0.07142857142857142
-0.07142857142857142 x 100 = -7.14%