-57.2% is the change from 729 to 312
Calculation steps:
[( 312 - 729 ) ÷ 729] x 100 = -57.2%
Formula
Percentage change = [(312 - 729) / 729] x 100
Subtract the new number by the original number
312 - 729 = -417
-417 ÷ 729 = -0.5720164609053497
-0.5720164609053497 x 100 = -57.2%