-69.3% is the change from 342 to 105
Calculation steps:
[( 105 - 342 ) ÷ 342] x 100 = -69.3%
Formula
Percentage change = [(105 - 342) / 342] x 100
Subtract the new number by the original number
105 - 342 = -237
-237 ÷ 342 = -0.6929824561403509
-0.6929824561403509 x 100 = -69.3%