-91.95% is the change from 522 to 42
Calculation steps:
[( 42 - 522 ) ÷ 522] x 100 = -91.95%
Formula
Percentage change = [(42 - 522) / 522] x 100
Subtract the new number by the original number
42 - 522 = -480
-480 ÷ 522 = -0.9195402298850575
-0.9195402298850575 x 100 = -91.95%