-22.41% is the change from 348 to 270
Calculation steps:
[( 270 - 348 ) ÷ 348] x 100 = -22.41%
Formula
Percentage change = [(270 - 348) / 348] x 100
Subtract the new number by the original number
270 - 348 = -78
-78 ÷ 348 = -0.22413793103448276
-0.22413793103448276 x 100 = -22.41%