-58.37% is the change from 771 to 321
Calculation steps:
[( 321 - 771 ) ÷ 771] x 100 = -58.37%
Formula
Percentage change = [(321 - 771) / 771] x 100
Subtract the new number by the original number
321 - 771 = -450
-450 ÷ 771 = -0.5836575875486382
-0.5836575875486382 x 100 = -58.37%