-14.19% is the change from 310 to 266
Calculation steps:
[( 266 - 310 ) ÷ 310] x 100 = -14.19%
Formula
Percentage change = [(266 - 310) / 310] x 100
Subtract the new number by the original number
266 - 310 = -44
-44 ÷ 310 = -0.14193548387096774
-0.14193548387096774 x 100 = -14.19%