-89.27% is the change from 177 to 19
Calculation steps:
[( 19 - 177 ) ÷ 177] x 100 = -89.27%
Formula
Percentage change = [(19 - 177) / 177] x 100
Subtract the new number by the original number
19 - 177 = -158
-158 ÷ 177 = -0.8926553672316384
-0.8926553672316384 x 100 = -89.27%