-36.17% is the change from 423 to 270
Calculation steps:
[( 270 - 423 ) ÷ 423] x 100 = -36.17%
Formula
Percentage change = [(270 - 423) / 423] x 100
Subtract the new number by the original number
270 - 423 = -153
-153 ÷ 423 = -0.3617021276595745
-0.3617021276595745 x 100 = -36.17%