-71.23% is the change from 730 to 210
Calculation steps:
[( 210 - 730 ) ÷ 730] x 100 = -71.23%
Formula
Percentage change = [(210 - 730) / 730] x 100
Subtract the new number by the original number
210 - 730 = -520
-520 ÷ 730 = -0.7123287671232876
-0.7123287671232876 x 100 = -71.23%