-9.23% is the change from 195 to 177
Calculation steps:
[( 177 - 195 ) ÷ 195] x 100 = -9.23%
Formula
Percentage change = [(177 - 195) / 195] x 100
Subtract the new number by the original number
177 - 195 = -18
-18 ÷ 195 = -0.09230769230769231
-0.09230769230769231 x 100 = -9.23%