-88.56% is the change from 647 to 74
Calculation steps:
[( 74 - 647 ) ÷ 647] x 100 = -88.56%
Formula
Percentage change = [(74 - 647) / 647] x 100
Subtract the new number by the original number
74 - 647 = -573
-573 ÷ 647 = -0.8856259659969088
-0.8856259659969088 x 100 = -88.56%