-98.46% is the change from 456 to 7
Calculation steps:
[( 7 - 456 ) ÷ 456] x 100 = -98.46%
Formula
Percentage change = [(7 - 456) / 456] x 100
Subtract the new number by the original number
7 - 456 = -449
-449 ÷ 456 = -0.9846491228070176
-0.9846491228070176 x 100 = -98.46%