-67.24% is the change from 522 to 171
Calculation steps:
[( 171 - 522 ) ÷ 522] x 100 = -67.24%
Formula
Percentage change = [(171 - 522) / 522] x 100
Subtract the new number by the original number
171 - 522 = -351
-351 ÷ 522 = -0.6724137931034483
-0.6724137931034483 x 100 = -67.24%