-2.62% is the change from 534 to 520
Calculation steps:
[( 520 - 534 ) ÷ 534] x 100 = -2.62%
Formula
Percentage change = [(520 - 534) / 534] x 100
Subtract the new number by the original number
520 - 534 = -14
-14 ÷ 534 = -0.026217228464419477
-0.026217228464419477 x 100 = -2.62%