-10.92% is the change from 348 to 310
Calculation steps:
[( 310 - 348 ) ÷ 348] x 100 = -10.92%
Formula
Percentage change = [(310 - 348) / 348] x 100
Subtract the new number by the original number
310 - 348 = -38
-38 ÷ 348 = -0.10919540229885058
-0.10919540229885058 x 100 = -10.92%