-11.37% is the change from 387 to 343
Calculation steps:
[( 343 - 387 ) ÷ 387] x 100 = -11.37%
Formula
Percentage change = [(343 - 387) / 387] x 100
Subtract the new number by the original number
343 - 387 = -44
-44 ÷ 387 = -0.11369509043927649
-0.11369509043927649 x 100 = -11.37%