-80.46% is the change from 522 to 102
Calculation steps:
[( 102 - 522 ) ÷ 522] x 100 = -80.46%
Formula
Percentage change = [(102 - 522) / 522] x 100
Subtract the new number by the original number
102 - 522 = -420
-420 ÷ 522 = -0.8045977011494253
-0.8045977011494253 x 100 = -80.46%