-76.97% is the change from 647 to 149
Calculation steps:
[( 149 - 647 ) ÷ 647] x 100 = -76.97%
Formula
Percentage change = [(149 - 647) / 647] x 100
Subtract the new number by the original number
149 - 647 = -498
-498 ÷ 647 = -0.7697063369397218
-0.7697063369397218 x 100 = -76.97%