-66.44% is the change from 721 to 242
Calculation steps:
[( 242 - 721 ) ÷ 721] x 100 = -66.44%
Formula
Percentage change = [(242 - 721) / 721] x 100
Subtract the new number by the original number
242 - 721 = -479
-479 ÷ 721 = -0.6643550624133149
-0.6643550624133149 x 100 = -66.44%