-30.38% is the change from 734 to 511
Calculation steps:
[( 511 - 734 ) ÷ 734] x 100 = -30.38%
Formula
Percentage change = [(511 - 734) / 734] x 100
Subtract the new number by the original number
511 - 734 = -223
-223 ÷ 734 = -0.30381471389645776
-0.30381471389645776 x 100 = -30.38%