-93.25% is the change from 637 to 43
Calculation steps:
[( 43 - 637 ) ÷ 637] x 100 = -93.25%
Formula
Percentage change = [(43 - 637) / 637] x 100
Subtract the new number by the original number
43 - 637 = -594
-594 ÷ 637 = -0.9324960753532182
-0.9324960753532182 x 100 = -93.25%