-73.51% is the change from 721 to 191
Calculation steps:
[( 191 - 721 ) ÷ 721] x 100 = -73.51%
Formula
Percentage change = [(191 - 721) / 721] x 100
Subtract the new number by the original number
191 - 721 = -530
-530 ÷ 721 = -0.7350901525658807
-0.7350901525658807 x 100 = -73.51%