-98.64% is the change from 514 to 7
Calculation steps:
[( 7 - 514 ) ÷ 514] x 100 = -98.64%
Formula
Percentage change = [(7 - 514) / 514] x 100
Subtract the new number by the original number
7 - 514 = -507
-507 ÷ 514 = -0.9863813229571985
-0.9863813229571985 x 100 = -98.64%