-57.7% is the change from 688 to 291
Calculation steps:
[( 291 - 688 ) ÷ 688] x 100 = -57.7%
Formula
Percentage change = [(291 - 688) / 688] x 100
Subtract the new number by the original number
291 - 688 = -397
-397 ÷ 688 = -0.5770348837209303
-0.5770348837209303 x 100 = -57.7%