-69.57% is the change from 621 to 189
Calculation steps:
[( 189 - 621 ) ÷ 621] x 100 = -69.57%
Formula
Percentage change = [(189 - 621) / 621] x 100
Subtract the new number by the original number
189 - 621 = -432
-432 ÷ 621 = -0.6956521739130435
-0.6956521739130435 x 100 = -69.57%