-35.02% is the change from 771 to 501
Calculation steps:
[( 501 - 771 ) ÷ 771] x 100 = -35.02%
Formula
Percentage change = [(501 - 771) / 771] x 100
Subtract the new number by the original number
501 - 771 = -270
-270 ÷ 771 = -0.35019455252918286
-0.35019455252918286 x 100 = -35.02%