-61.3% is the change from 721 to 279
Calculation steps:
[( 279 - 721 ) ÷ 721] x 100 = -61.3%
Formula
Percentage change = [(279 - 721) / 721] x 100
Subtract the new number by the original number
279 - 721 = -442
-442 ÷ 721 = -0.6130374479889042
-0.6130374479889042 x 100 = -61.3%