-22.22% is the change from 342 to 266
Calculation steps:
[( 266 - 342 ) ÷ 342] x 100 = -22.22%
Formula
Percentage change = [(266 - 342) / 342] x 100
Subtract the new number by the original number
266 - 342 = -76
-76 ÷ 342 = -0.2222222222222222
-0.2222222222222222 x 100 = -22.22%