-78.97% is the change from 485 to 102
Calculation steps:
[( 102 - 485 ) ÷ 485] x 100 = -78.97%
Formula
Percentage change = [(102 - 485) / 485] x 100
Subtract the new number by the original number
102 - 485 = -383
-383 ÷ 485 = -0.7896907216494845
-0.7896907216494845 x 100 = -78.97%