-10.11% is the change from 356 to 320
Calculation steps:
[( 320 - 356 ) ÷ 356] x 100 = -10.11%
Formula
Percentage change = [(320 - 356) / 356] x 100
Subtract the new number by the original number
320 - 356 = -36
-36 ÷ 356 = -0.10112359550561797
-0.10112359550561797 x 100 = -10.11%