-38.13% is the change from 278 to 172
Calculation steps:
[( 172 - 278 ) ÷ 278] x 100 = -38.13%
Formula
Percentage change = [(172 - 278) / 278] x 100
Subtract the new number by the original number
172 - 278 = -106
-106 ÷ 278 = -0.381294964028777
-0.381294964028777 x 100 = -38.13%