78.62% is the change from 538 to 961
Calculation steps:
[( 961 - 538 ) ÷ 538] x 100 = 78.62%
Formula
Percentage change = [(961 - 538) / 538] x 100
Subtract the new number by the original number
961 - 538 = 423
423 ÷ 538 = 0.7862453531598513
0.7862453531598513 x 100 = 78.62%