-69.54% is the change from 637 to 194
Calculation steps:
[( 194 - 637 ) ÷ 637] x 100 = -69.54%
Formula
Percentage change = [(194 - 637) / 637] x 100
Subtract the new number by the original number
194 - 637 = -443
-443 ÷ 637 = -0.695447409733124
-0.695447409733124 x 100 = -69.54%