-23.98% is the change from 342 to 260
Calculation steps:
[( 260 - 342 ) ÷ 342] x 100 = -23.98%
Formula
Percentage change = [(260 - 342) / 342] x 100
Subtract the new number by the original number
260 - 342 = -82
-82 ÷ 342 = -0.23976608187134502
-0.23976608187134502 x 100 = -23.98%