-22.38% is the change from 688 to 534
Calculation steps:
[( 534 - 688 ) ÷ 688] x 100 = -22.38%
Formula
Percentage change = [(534 - 688) / 688] x 100
Subtract the new number by the original number
534 - 688 = -154
-154 ÷ 688 = -0.2238372093023256
-0.2238372093023256 x 100 = -22.38%