-36.9% is the change from 664 to 419
Calculation steps:
[( 419 - 664 ) ÷ 664] x 100 = -36.9%
Formula
Percentage change = [(419 - 664) / 664] x 100
Subtract the new number by the original number
419 - 664 = -245
-245 ÷ 664 = -0.3689759036144578
-0.3689759036144578 x 100 = -36.9%