-97.25% is the change from 690 to 19
Calculation steps:
[( 19 - 690 ) ÷ 690] x 100 = -97.25%
Formula
Percentage change = [(19 - 690) / 690] x 100
Subtract the new number by the original number
19 - 690 = -671
-671 ÷ 690 = -0.972463768115942
-0.972463768115942 x 100 = -97.25%