-36.84% is the change from 771 to 487
Calculation steps:
[( 487 - 771 ) ÷ 771] x 100 = -36.84%
Formula
Percentage change = [(487 - 771) / 771] x 100
Subtract the new number by the original number
487 - 771 = -284
-284 ÷ 771 = -0.36835278858625164
-0.36835278858625164 x 100 = -36.84%