-20.74% is the change from 270 to 214
Calculation steps:
[( 214 - 270 ) ÷ 270] x 100 = -20.74%
Formula
Percentage change = [(214 - 270) / 270] x 100
Subtract the new number by the original number
214 - 270 = -56
-56 ÷ 270 = -0.2074074074074074
-0.2074074074074074 x 100 = -20.74%