-22.19% is the change from 347 to 270
Calculation steps:
[( 270 - 347 ) ÷ 347] x 100 = -22.19%
Formula
Percentage change = [(270 - 347) / 347] x 100
Subtract the new number by the original number
270 - 347 = -77
-77 ÷ 347 = -0.2219020172910663
-0.2219020172910663 x 100 = -22.19%