-21.93% is the change from 342 to 267
Calculation steps:
[( 267 - 342 ) ÷ 342] x 100 = -21.93%
Formula
Percentage change = [(267 - 342) / 342] x 100
Subtract the new number by the original number
267 - 342 = -75
-75 ÷ 342 = -0.21929824561403508
-0.21929824561403508 x 100 = -21.93%