-69.57% is the change from 207 to 63
Calculation steps:
[( 63 - 207 ) ÷ 207] x 100 = -69.57%
Formula
Percentage change = [(63 - 207) / 207] x 100
Subtract the new number by the original number
63 - 207 = -144
-144 ÷ 207 = -0.6956521739130435
-0.6956521739130435 x 100 = -69.57%