-18.06% is the change from 216 to 177
Calculation steps:
[( 177 - 216 ) ÷ 216] x 100 = -18.06%
Formula
Percentage change = [(177 - 216) / 216] x 100
Subtract the new number by the original number
177 - 216 = -39
-39 ÷ 216 = -0.18055555555555555
-0.18055555555555555 x 100 = -18.06%