-83.53% is the change from 771 to 127
Calculation steps:
[( 127 - 771 ) ÷ 771] x 100 = -83.53%
Formula
Percentage change = [(127 - 771) / 771] x 100
Subtract the new number by the original number
127 - 771 = -644
-644 ÷ 771 = -0.8352788586251622
-0.8352788586251622 x 100 = -83.53%