-99.62% is the change from 522 to 2
Calculation steps:
[( 2 - 522 ) ÷ 522] x 100 = -99.62%
Formula
Percentage change = [(2 - 522) / 522] x 100
Subtract the new number by the original number
2 - 522 = -520
-520 ÷ 522 = -0.9961685823754789
-0.9961685823754789 x 100 = -99.62%