-80.67% is the change from 657 to 127
Calculation steps:
[( 127 - 657 ) ÷ 657] x 100 = -80.67%
Formula
Percentage change = [(127 - 657) / 657] x 100
Subtract the new number by the original number
127 - 657 = -530
-530 ÷ 657 = -0.806697108066971
-0.806697108066971 x 100 = -80.67%