-20.21% is the change from 485 to 387
Calculation steps:
[( 387 - 485 ) ÷ 485] x 100 = -20.21%
Formula
Percentage change = [(387 - 485) / 485] x 100
Subtract the new number by the original number
387 - 485 = -98
-98 ÷ 485 = -0.2020618556701031
-0.2020618556701031 x 100 = -20.21%