-10% is the change from 730 to 657
Calculation steps:
[( 657 - 730 ) ÷ 730] x 100 = -10%
Formula
Percentage change = [(657 - 730) / 730] x 100
Subtract the new number by the original number
657 - 730 = -73
-73 ÷ 730 = -0.1
-0.1 x 100 = -10%
Example