-72.03% is the change from 790 to 221
Calculation steps:
[( 221 - 790 ) ÷ 790] x 100 = -72.03%
Formula
Percentage change = [(221 - 790) / 790] x 100
Subtract the new number by the original number
221 - 790 = -569
-569 ÷ 790 = -0.720253164556962
-0.720253164556962 x 100 = -72.03%