-50.49% is the change from 721 to 357
Calculation steps:
[( 357 - 721 ) ÷ 721] x 100 = -50.49%
Formula
Percentage change = [(357 - 721) / 721] x 100
Subtract the new number by the original number
357 - 721 = -364
-364 ÷ 721 = -0.5048543689320388
-0.5048543689320388 x 100 = -50.49%