-35.39% is the change from 534 to 345
Calculation steps:
[( 345 - 534 ) ÷ 534] x 100 = -35.39%
Formula
Percentage change = [(345 - 534) / 534] x 100
Subtract the new number by the original number
345 - 534 = -189
-189 ÷ 534 = -0.3539325842696629
-0.3539325842696629 x 100 = -35.39%