-17.64% is the change from 771 to 635
Calculation steps:
[( 635 - 771 ) ÷ 771] x 100 = -17.64%
Formula
Percentage change = [(635 - 771) / 771] x 100
Subtract the new number by the original number
635 - 771 = -136
-136 ÷ 771 = -0.17639429312581065
-0.17639429312581065 x 100 = -17.64%