-7.06% is the change from 340 to 316
Calculation steps:
[( 316 - 340 ) ÷ 340] x 100 = -7.06%
Formula
Percentage change = [(316 - 340) / 340] x 100
Subtract the new number by the original number
316 - 340 = -24
-24 ÷ 340 = -0.07058823529411765
-0.07058823529411765 x 100 = -7.06%