-30.94% is the change from 737 to 509
Calculation steps:
[( 509 - 737 ) ÷ 737] x 100 = -30.94%
Formula
Percentage change = [(509 - 737) / 737] x 100
Subtract the new number by the original number
509 - 737 = -228
-228 ÷ 737 = -0.3093622795115332
-0.3093622795115332 x 100 = -30.94%