-66.13% is the change from 688 to 233
Calculation steps:
[( 233 - 688 ) ÷ 688] x 100 = -66.13%
Formula
Percentage change = [(233 - 688) / 688] x 100
Subtract the new number by the original number
233 - 688 = -455
-455 ÷ 688 = -0.6613372093023255
-0.6613372093023255 x 100 = -66.13%