-3.13% is the change from 351 to 340
Calculation steps:
[( 340 - 351 ) ÷ 351] x 100 = -3.13%
Formula
Percentage change = [(340 - 351) / 351] x 100
Subtract the new number by the original number
340 - 351 = -11
-11 ÷ 351 = -0.03133903133903134
-0.03133903133903134 x 100 = -3.13%