-45.21% is the change from 730 to 400
Calculation steps:
[( 400 - 730 ) ÷ 730] x 100 = -45.21%
Formula
Percentage change = [(400 - 730) / 730] x 100
Subtract the new number by the original number
400 - 730 = -330
-330 ÷ 730 = -0.4520547945205479
-0.4520547945205479 x 100 = -45.21%