-33.46% is the change from 771 to 513
Calculation steps:
[( 513 - 771 ) ÷ 771] x 100 = -33.46%
Formula
Percentage change = [(513 - 771) / 771] x 100
Subtract the new number by the original number
513 - 771 = -258
-258 ÷ 771 = -0.3346303501945525
-0.3346303501945525 x 100 = -33.46%