-29.88% is the change from 743 to 521
Calculation steps:
[( 521 - 743 ) ÷ 743] x 100 = -29.88%
Formula
Percentage change = [(521 - 743) / 743] x 100
Subtract the new number by the original number
521 - 743 = -222
-222 ÷ 743 = -0.29878869448183043
-0.29878869448183043 x 100 = -29.88%