-63.38% is the change from 538 to 197
Calculation steps:
[( 197 - 538 ) ÷ 538] x 100 = -63.38%
Formula
Percentage change = [(197 - 538) / 538] x 100
Subtract the new number by the original number
197 - 538 = -341
-341 ÷ 538 = -0.6338289962825279
-0.6338289962825279 x 100 = -63.38%