-86.59% is the change from 522 to 70
Calculation steps:
[( 70 - 522 ) ÷ 522] x 100 = -86.59%
Formula
Percentage change = [(70 - 522) / 522] x 100
Subtract the new number by the original number
70 - 522 = -452
-452 ÷ 522 = -0.8659003831417624
-0.8659003831417624 x 100 = -86.59%