-90.66% is the change from 664 to 62
Calculation steps:
[( 62 - 664 ) ÷ 664] x 100 = -90.66%
Formula
Percentage change = [(62 - 664) / 664] x 100
Subtract the new number by the original number
62 - 664 = -602
-602 ÷ 664 = -0.9066265060240963
-0.9066265060240963 x 100 = -90.66%