-90.17% is the change from 743 to 73
Calculation steps:
[( 73 - 743 ) ÷ 743] x 100 = -90.17%
Formula
Percentage change = [(73 - 743) / 743] x 100
Subtract the new number by the original number
73 - 743 = -670
-670 ÷ 743 = -0.901749663526245
-0.901749663526245 x 100 = -90.17%