-26.21% is the change from 538 to 397
Calculation steps:
[( 397 - 538 ) ÷ 538] x 100 = -26.21%
Formula
Percentage change = [(397 - 538) / 538] x 100
Subtract the new number by the original number
397 - 538 = -141
-141 ÷ 538 = -0.2620817843866171
-0.2620817843866171 x 100 = -26.21%