-9.12% is the change from 351 to 319
Calculation steps:
[( 319 - 351 ) ÷ 351] x 100 = -9.12%
Formula
Percentage change = [(319 - 351) / 351] x 100
Subtract the new number by the original number
319 - 351 = -32
-32 ÷ 351 = -0.09116809116809117
-0.09116809116809117 x 100 = -9.12%