-92.01% is the change from 688 to 55
Calculation steps:
[( 55 - 688 ) ÷ 688] x 100 = -92.01%
Formula
Percentage change = [(55 - 688) / 688] x 100
Subtract the new number by the original number
55 - 688 = -633
-633 ÷ 688 = -0.9200581395348837
-0.9200581395348837 x 100 = -92.01%