-35.05% is the change from 97 to 63
Calculation steps:
[( 63 - 97 ) ÷ 97] x 100 = -35.05%
Formula
Percentage change = [(63 - 97) / 97] x 100
Subtract the new number by the original number
63 - 97 = -34
-34 ÷ 97 = -0.35051546391752575
-0.35051546391752575 x 100 = -35.05%