-92.17% is the change from 664 to 52
Calculation steps:
[( 52 - 664 ) ÷ 664] x 100 = -92.17%
Formula
Percentage change = [(52 - 664) / 664] x 100
Subtract the new number by the original number
52 - 664 = -612
-612 ÷ 664 = -0.9216867469879518
-0.9216867469879518 x 100 = -92.17%