-93.32% is the change from 644 to 43
Calculation steps:
[( 43 - 644 ) ÷ 644] x 100 = -93.32%
Formula
Percentage change = [(43 - 644) / 644] x 100
Subtract the new number by the original number
43 - 644 = -601
-601 ÷ 644 = -0.9332298136645962
-0.9332298136645962 x 100 = -93.32%