-70.66% is the change from 651 to 191
Calculation steps:
[( 191 - 651 ) ÷ 651] x 100 = -70.66%
Formula
Percentage change = [(191 - 651) / 651] x 100
Subtract the new number by the original number
191 - 651 = -460
-460 ÷ 651 = -0.706605222734255
-0.706605222734255 x 100 = -70.66%