-70.96% is the change from 830 to 241
Calculation steps:
[( 241 - 830 ) ÷ 830] x 100 = -70.96%
Formula
Percentage change = [(241 - 830) / 830] x 100
Subtract the new number by the original number
241 - 830 = -589
-589 ÷ 830 = -0.7096385542168675
-0.7096385542168675 x 100 = -70.96%