-10.6% is the change from 302 to 270
Calculation steps:
[( 270 - 302 ) ÷ 302] x 100 = -10.6%
Formula
Percentage change = [(270 - 302) / 302] x 100
Subtract the new number by the original number
270 - 302 = -32
-32 ÷ 302 = -0.10596026490066225
-0.10596026490066225 x 100 = -10.6%