-0.37% is the change from 270 to 269
Calculation steps:
[( 269 - 270 ) ÷ 270] x 100 = -0.37%
Formula
Percentage change = [(269 - 270) / 270] x 100
Subtract the new number by the original number
269 - 270 = -1
-1 ÷ 270 = -0.003703703703703704
-0.003703703703703704 x 100 = -0.37%