-19.11% is the change from 157 to 127
Calculation steps:
[( 127 - 157 ) ÷ 157] x 100 = -19.11%
Formula
Percentage change = [(127 - 157) / 157] x 100
Subtract the new number by the original number
127 - 157 = -30
-30 ÷ 157 = -0.1910828025477707
-0.1910828025477707 x 100 = -19.11%