-37.98% is the change from 516 to 320
Calculation steps:
[( 320 - 516 ) ÷ 516] x 100 = -37.98%
Formula
Percentage change = [(320 - 516) / 516] x 100
Subtract the new number by the original number
320 - 516 = -196
-196 ÷ 516 = -0.3798449612403101
-0.3798449612403101 x 100 = -37.98%