-72.24% is the change from 688 to 191
Calculation steps:
[( 191 - 688 ) ÷ 688] x 100 = -72.24%
Formula
Percentage change = [(191 - 688) / 688] x 100
Subtract the new number by the original number
191 - 688 = -497
-497 ÷ 688 = -0.7223837209302325
-0.7223837209302325 x 100 = -72.24%