-91.28% is the change from 837 to 73
Calculation steps:
[( 73 - 837 ) ÷ 837] x 100 = -91.28%
Formula
Percentage change = [(73 - 837) / 837] x 100
Subtract the new number by the original number
73 - 837 = -764
-764 ÷ 837 = -0.9127837514934289
-0.9127837514934289 x 100 = -91.28%