-70.13% is the change from 549 to 164
Calculation steps:
[( 164 - 549 ) ÷ 549] x 100 = -70.13%
Formula
Percentage change = [(164 - 549) / 549] x 100
Subtract the new number by the original number
164 - 549 = -385
-385 ÷ 549 = -0.7012750455373407
-0.7012750455373407 x 100 = -70.13%