-71.08% is the change from 688 to 199
Calculation steps:
[( 199 - 688 ) ÷ 688] x 100 = -71.08%
Formula
Percentage change = [(199 - 688) / 688] x 100
Subtract the new number by the original number
199 - 688 = -489
-489 ÷ 688 = -0.7107558139534884
-0.7107558139534884 x 100 = -71.08%