-97.77% is the change from 314 to 7
Calculation steps:
[( 7 - 314 ) ÷ 314] x 100 = -97.77%
Formula
Percentage change = [(7 - 314) / 314] x 100
Subtract the new number by the original number
7 - 314 = -307
-307 ÷ 314 = -0.9777070063694268
-0.9777070063694268 x 100 = -97.77%