-31.82% is the change from 396 to 270
Calculation steps:
[( 270 - 396 ) ÷ 396] x 100 = -31.82%
Formula
Percentage change = [(270 - 396) / 396] x 100
Subtract the new number by the original number
270 - 396 = -126
-126 ÷ 396 = -0.3181818181818182
-0.3181818181818182 x 100 = -31.82%