-34.99% is the change from 423 to 275
Calculation steps:
[( 275 - 423 ) ÷ 423] x 100 = -34.99%
Formula
Percentage change = [(275 - 423) / 423] x 100
Subtract the new number by the original number
275 - 423 = -148
-148 ÷ 423 = -0.34988179669030733
-0.34988179669030733 x 100 = -34.99%