-68.92% is the change from 711 to 221
Calculation steps:
[( 221 - 711 ) ÷ 711] x 100 = -68.92%
Formula
Percentage change = [(221 - 711) / 711] x 100
Subtract the new number by the original number
221 - 711 = -490
-490 ÷ 711 = -0.6891701828410689
-0.6891701828410689 x 100 = -68.92%