-18.21% is the change from 302 to 247
Calculation steps:
[( 247 - 302 ) ÷ 302] x 100 = -18.21%
Formula
Percentage change = [(247 - 302) / 302] x 100
Subtract the new number by the original number
247 - 302 = -55
-55 ÷ 302 = -0.18211920529801323
-0.18211920529801323 x 100 = -18.21%