-7.8% is the change from 346 to 319
Calculation steps:
[( 319 - 346 ) ÷ 346] x 100 = -7.8%
Formula
Percentage change = [(319 - 346) / 346] x 100
Subtract the new number by the original number
319 - 346 = -27
-27 ÷ 346 = -0.07803468208092486
-0.07803468208092486 x 100 = -7.8%