-68.8% is the change from 548 to 171
Calculation steps:
[( 171 - 548 ) ÷ 548] x 100 = -68.8%
Formula
Percentage change = [(171 - 548) / 548] x 100
Subtract the new number by the original number
171 - 548 = -377
-377 ÷ 548 = -0.6879562043795621
-0.6879562043795621 x 100 = -68.8%