-98.34% is the change from 422 to 7
Calculation steps:
[( 7 - 422 ) ÷ 422] x 100 = -98.34%
Formula
Percentage change = [(7 - 422) / 422] x 100
Subtract the new number by the original number
7 - 422 = -415
-415 ÷ 422 = -0.9834123222748815
-0.9834123222748815 x 100 = -98.34%