-36.14% is the change from 664 to 424
Calculation steps:
[( 424 - 664 ) ÷ 664] x 100 = -36.14%
Formula
Percentage change = [(424 - 664) / 664] x 100
Subtract the new number by the original number
424 - 664 = -240
-240 ÷ 664 = -0.3614457831325301
-0.3614457831325301 x 100 = -36.14%