137.55% is the change from 261 to 620
Calculation steps:
[( 620 - 261 ) ÷ 261] x 100 = 137.55%
Formula
Percentage change = [(620 - 261) / 261] x 100
Subtract the new number by the original number
620 - 261 = 359
359 ÷ 261 = 1.3754789272030652
1.3754789272030652 x 100 = 137.55%