-71.8% is the change from 688 to 194
Calculation steps:
[( 194 - 688 ) ÷ 688] x 100 = -71.8%
Formula
Percentage change = [(194 - 688) / 688] x 100
Subtract the new number by the original number
194 - 688 = -494
-494 ÷ 688 = -0.7180232558139535
-0.7180232558139535 x 100 = -71.8%