-33.43% is the change from 664 to 442
Calculation steps:
[( 442 - 664 ) ÷ 664] x 100 = -33.43%
Formula
Percentage change = [(442 - 664) / 664] x 100
Subtract the new number by the original number
442 - 664 = -222
-222 ÷ 664 = -0.33433734939759036
-0.33433734939759036 x 100 = -33.43%