-2.04% is the change from 343 to 336
Calculation steps:
[( 336 - 343 ) ÷ 343] x 100 = -2.04%
Formula
Percentage change = [(336 - 343) / 343] x 100
Subtract the new number by the original number
336 - 343 = -7
-7 ÷ 343 = -0.02040816326530612
-0.02040816326530612 x 100 = -2.04%