-91.81% is the change from 647 to 53
Calculation steps:
[( 53 - 647 ) ÷ 647] x 100 = -91.81%
Formula
Percentage change = [(53 - 647) / 647] x 100
Subtract the new number by the original number
53 - 647 = -594
-594 ÷ 647 = -0.9180834621329211
-0.9180834621329211 x 100 = -91.81%