-73.52% is the change from 627 to 166
Calculation steps:
[( 166 - 627 ) ÷ 627] x 100 = -73.52%
Formula
Percentage change = [(166 - 627) / 627] x 100
Subtract the new number by the original number
166 - 627 = -461
-461 ÷ 627 = -0.7352472089314195
-0.7352472089314195 x 100 = -73.52%