-28.95% is the change from 342 to 243
Calculation steps:
[( 243 - 342 ) ÷ 342] x 100 = -28.95%
Formula
Percentage change = [(243 - 342) / 342] x 100
Subtract the new number by the original number
243 - 342 = -99
-99 ÷ 342 = -0.2894736842105263
-0.2894736842105263 x 100 = -28.95%