-16.96% is the change from 342 to 284
Calculation steps:
[( 284 - 342 ) ÷ 342] x 100 = -16.96%
Formula
Percentage change = [(284 - 342) / 342] x 100
Subtract the new number by the original number
284 - 342 = -58
-58 ÷ 342 = -0.1695906432748538
-0.1695906432748538 x 100 = -16.96%