-69.97% is the change from 636 to 191
Calculation steps:
[( 191 - 636 ) ÷ 636] x 100 = -69.97%
Formula
Percentage change = [(191 - 636) / 636] x 100
Subtract the new number by the original number
191 - 636 = -445
-445 ÷ 636 = -0.699685534591195
-0.699685534591195 x 100 = -69.97%