-40.61% is the change from 522 to 310
Calculation steps:
[( 310 - 522 ) ÷ 522] x 100 = -40.61%
Formula
Percentage change = [(310 - 522) / 522] x 100
Subtract the new number by the original number
310 - 522 = -212
-212 ÷ 522 = -0.4061302681992337
-0.4061302681992337 x 100 = -40.61%