-92.94% is the change from 637 to 45
Calculation steps:
[( 45 - 637 ) ÷ 637] x 100 = -92.94%
Formula
Percentage change = [(45 - 637) / 637] x 100
Subtract the new number by the original number
45 - 637 = -592
-592 ÷ 637 = -0.9293563579277865
-0.9293563579277865 x 100 = -92.94%