-73.97% is the change from 73 to 19
Calculation steps:
[( 19 - 73 ) ÷ 73] x 100 = -73.97%
Formula
Percentage change = [(19 - 73) / 73] x 100
Subtract the new number by the original number
19 - 73 = -54
-54 ÷ 73 = -0.7397260273972602
-0.7397260273972602 x 100 = -73.97%