-92.67% is the change from 641 to 47
Calculation steps:
[( 47 - 641 ) ÷ 641] x 100 = -92.67%
Formula
Percentage change = [(47 - 641) / 641] x 100
Subtract the new number by the original number
47 - 641 = -594
-594 ÷ 641 = -0.9266770670826833
-0.9266770670826833 x 100 = -92.67%