-69.09% is the change from 715 to 221
Calculation steps:
[( 221 - 715 ) ÷ 715] x 100 = -69.09%
Formula
Percentage change = [(221 - 715) / 715] x 100
Subtract the new number by the original number
221 - 715 = -494
-494 ÷ 715 = -0.6909090909090909
-0.6909090909090909 x 100 = -69.09%