-21.4% is the change from 771 to 606
Calculation steps:
[( 606 - 771 ) ÷ 771] x 100 = -21.4%
Formula
Percentage change = [(606 - 771) / 771] x 100
Subtract the new number by the original number
606 - 771 = -165
-165 ÷ 771 = -0.2140077821011673
-0.2140077821011673 x 100 = -21.4%