-50.62% is the change from 721 to 356
Calculation steps:
[( 356 - 721 ) ÷ 721] x 100 = -50.62%
Formula
Percentage change = [(356 - 721) / 721] x 100
Subtract the new number by the original number
356 - 721 = -365
-365 ÷ 721 = -0.5062413314840499
-0.5062413314840499 x 100 = -50.62%