-85.46% is the change from 619 to 90
Calculation steps:
[( 90 - 619 ) ÷ 619] x 100 = -85.46%
Formula
Percentage change = [(90 - 619) / 619] x 100
Subtract the new number by the original number
90 - 619 = -529
-529 ÷ 619 = -0.8546042003231018
-0.8546042003231018 x 100 = -85.46%