-70% is the change from 730 to 219
Calculation steps:
[( 219 - 730 ) ÷ 730] x 100 = -70%
Formula
Percentage change = [(219 - 730) / 730] x 100
Subtract the new number by the original number
219 - 730 = -511
-511 ÷ 730 = -0.7
-0.7 x 100 = -70%
Example