-97.68% is the change from 302 to 7
Calculation steps:
[( 7 - 302 ) ÷ 302] x 100 = -97.68%
Formula
Percentage change = [(7 - 302) / 302] x 100
Subtract the new number by the original number
7 - 302 = -295
-295 ÷ 302 = -0.9768211920529801
-0.9768211920529801 x 100 = -97.68%