-92.22% is the change from 668 to 52
Calculation steps:
[( 52 - 668 ) ÷ 668] x 100 = -92.22%
Formula
Percentage change = [(52 - 668) / 668] x 100
Subtract the new number by the original number
52 - 668 = -616
-616 ÷ 668 = -0.9221556886227545
-0.9221556886227545 x 100 = -92.22%