-98.21% is the change from 392 to 7
Calculation steps:
[( 7 - 392 ) ÷ 392] x 100 = -98.21%
Formula
Percentage change = [(7 - 392) / 392] x 100
Subtract the new number by the original number
7 - 392 = -385
-385 ÷ 392 = -0.9821428571428571
-0.9821428571428571 x 100 = -98.21%