-68.1% is the change from 630 to 201
Calculation steps:
[( 201 - 630 ) ÷ 630] x 100 = -68.1%
Formula
Percentage change = [(201 - 630) / 630] x 100
Subtract the new number by the original number
201 - 630 = -429
-429 ÷ 630 = -0.680952380952381
-0.680952380952381 x 100 = -68.1%