-86.64% is the change from 524 to 70
Calculation steps:
[( 70 - 524 ) ÷ 524] x 100 = -86.64%
Formula
Percentage change = [(70 - 524) / 524] x 100
Subtract the new number by the original number
70 - 524 = -454
-454 ÷ 524 = -0.8664122137404581
-0.8664122137404581 x 100 = -86.64%