-30.93% is the change from 734 to 507
Calculation steps:
[( 507 - 734 ) ÷ 734] x 100 = -30.93%
Formula
Percentage change = [(507 - 734) / 734] x 100
Subtract the new number by the original number
507 - 734 = -227
-227 ÷ 734 = -0.30926430517711173
-0.30926430517711173 x 100 = -30.93%