-69.39% is the change from 343 to 105
Calculation steps:
[( 105 - 343 ) ÷ 343] x 100 = -69.39%
Formula
Percentage change = [(105 - 343) / 343] x 100
Subtract the new number by the original number
105 - 343 = -238
-238 ÷ 343 = -0.6938775510204082
-0.6938775510204082 x 100 = -69.39%